There is no guess work or gameday decision to await this week on who will start at quarterback for the Miami Dolphins against the Detroit Lions.
Brock Osweiler, who led the Dolphins to a 31-28 overtime victory over the Chicago Bears last week as a gameday emergency replacement for Ryan Tannehill, was named the starter for Sunday's game at Hard Rock Stadium.
Dolphins head coach Adam Gase, a former Lions assistant, made the announcement Wednesday afternoon and explained it to the Detroit media in a conference call interview later in the day.
It was a matter of a shoulder injury that caused Tannehill to miss last week's game failing to heal adequately, Gase said.
"We're taking it a day at a time," Gase said. "And it's really been one of those things where we've got to kind of regroup and figure out where he (Tannehill) is at. Last week he kind of went downhill from the start of the week to the end of the week."'
Gase said he doesn't expect to make major changes in the offensive game plan to accommodate the different playing styles of Tannehill and Osweiler. There didn't seem to be any major concern on the Lions' part in preparing for Osweiler as opposed to Tannehill.
"I prepare for schemes, not quarterbacks," Lions cornerback Nevin Lawson emphasized before the quarterback change was announced. "I'm a cornerback. I don't prepare for quarterbacks. I prepare for schemes."
Meet this week's opponents, the Miami Dolphins.

HC Adam Gase

WR DeVante Parker
Backed up by Jakeem Grant

LT Laremy Tunsil
Backed up by Zach Sterup

LG Ted Larsen

C Travis Swanson
Backed up by Wesley Johnson

RG Jesse Davis

RT Ja'Wuan James
Backed up by Sam Young

TE A.J. Derby
Backed up by Mike Gesicki and Durham Smythe

QB Ryan Tannehill
Backed up by David Fales, Brock Osweiler and Luke Falk

RB Kenyan Drake and Frank Gore
Backed up by Senorise Perry, Kalen Ballage and Brandon Bolden

WR Danny Amendola

WR Kenny Stills
Backed up by Albert Wilson

DE Cameron Wake
Backed up by Andre Branch and Jonathan Woodard

DT Davon Godchaux

DT Akeem Spence
Backed up by Vincent Taylor

DE Robert Quinn
Backed up by Charles Harris and Cameron Malveaux

LB Kiko Alonso
Backed up by Martrell Spaight

LB Raekwon McMillan
Backed up by Chase Allen

LB Jerome Baker
Backed up by Stephone Anthony

CB Xavien Howard
Backed up by Torry McTyer and Cornell Armstrong

CB Bobby McCain
Backed up by Cordrea Tankersley

S Reshad Jones
Backed up by Walt Aikens

S T.J. McDonald
Backed up by Minkah Fitzpatrick

K Jason Sanders

P Matt Haack

KO Jason Sanders

H Matt Haack

LS John Denney

KOR Jakeem Grant
Backed up by Senorise Perry, Albert Wilson and Kalen Ballage

PR Jakeem Grant
Backed up by Danny Amendola, Albert Wilson and Kenyan Drake
Osweiler is considerably bigger and more physically imposing at 6-7 and 240 pounds than Tannehill, who is 6-4 and 207 and more athletic.
"They're not far apart," Gase said. "Ryan has a larger skill set when it comes to being able to run with the football. Brock still has the ability to do a lot of that. He's athletic. He's a former basketball player.
"When he gets out in the open field, he's not afraid to mix it up with anybody. There's not too much difference. It's not like a wholesale change in the offense."
Being named the starter at the beginning of the practice week should give Osweiler a head start over last week's preparation, when he told reporters after Sunday's game he took "one or two" practice plays with the No. 1 offense on Thursday and "a couple" on Friday.
Osweiler played his role against the Bears, with help from his teammates, to give the Dolphins a victory they needed badly to stop a two-game losing streak that took the glow off their 3-0 start.
Osweiler completed 28 of 44 passes for 380 yards, three touchdowns and two interceptions. He connected with speedster Albert Wilson on a 75-yard catch and run – mostly run – for a game-tying touchdown with 3:11 left in regulation.
Frank Gore, seemingly ageless at 35 and in his 14th pro season, led the running game with 15 carries for 101 yards.
Rookie Jason Sanders kicked a 47-yard field goal as time expired in overtime to win the game. Sanders was 3-for-3 in the game and is now 6-for-6 for the season.
View photos from Detroit Lions practice on Wednesday, Oct. 17, 2018.

Detroit Lions special teams coordinator Joe Marciano during practice at the Detroit Lions training facility on Wednesday, Oct. 17, 2018 in Allen Park, Mich. (Detroit Lions via AP)

Detroit Lions defensive end Kerry Hyder Jr. (61) during practice at the Detroit Lions training facility on Wednesday, Oct. 17, 2018 in Allen Park, Mich. (Detroit Lions via AP)

Detroit Lions defensive coordinator Paul Pasqualoni during practice at the Detroit Lions training facility on Wednesday, Oct. 17, 2018 in Allen Park, Mich. (Detroit Lions via AP)

Detroit Lions offensive linemen during practice at the Detroit Lions training facility on Wednesday, Oct. 17, 2018 in Allen Park, Mich. (Detroit Lions via AP)

Detroit Lions huddle as a team during practice at the Detroit Lions training facility on Wednesday, Oct. 17, 2018 in Allen Park, Mich. (Detroit Lions via AP)

Detroit Lions wide receiver coach Robert Prince during practice at the Detroit Lions training facility on Wednesday, Oct. 17, 2018 in Allen Park, Mich. (Detroit Lions via AP)

Detroit Lions wide receiver Marvin Jones Jr. (11) and Detroit Lions wide receiver coach Robert Prince head to a drill during practice at the Detroit Lions training facility on Wednesday, Oct. 17, 2018 in Allen Park, Mich. (Detroit Lions via AP)

Detroit Lions center/guard Graham Glasgow (60) during practice at the Detroit Lions training facility on Wednesday, Oct. 17, 2018 in Allen Park, Mich. (Detroit Lions via AP)

Detroit Lions wide receiver Golden Tate (15) during practice at the Detroit Lions training facility on Wednesday, Oct. 17, 2018 in Allen Park, Mich. (Detroit Lions via AP)

Detroit Lions wide receiver TJ Jones (13) during practice at the Detroit Lions training facility on Wednesday, Oct. 17, 2018 in Allen Park, Mich. (Detroit Lions via AP)

Detroit Lions wide receiver Brandon Powell (10) during practice at the Detroit Lions training facility on Wednesday, Oct. 17, 2018 in Allen Park, Mich. (Detroit Lions via AP)

Detroit Lions offensive coordinator Jim Bob Cooter during practice at the Detroit Lions training facility on Wednesday, Oct. 17, 2018 in Allen Park, Mich. (Detroit Lions via AP)

Detroit Lions wide receiver Marvin Jones Jr. (11) during practice at the Detroit Lions training facility on Wednesday, Oct. 17, 2018 in Allen Park, Mich. (Detroit Lions via AP)

Detroit Lions wide receiver Brandon Powell (10) during practice at the Detroit Lions training facility on Wednesday, Oct. 17, 2018 in Allen Park, Mich. (Detroit Lions via AP)

Detroit Lions wide receiver Marvin Jones Jr. (11) during practice at the Detroit Lions training facility on Wednesday, Oct. 17, 2018 in Allen Park, Mich. (Detroit Lions via AP)

Detroit Lions running back Ameer Abdullah (21) during practice at the Detroit Lions training facility on Wednesday, Oct. 17, 2018 in Allen Park, Mich. (Detroit Lions via AP)

Detroit Lions running back Kerryon Johnson (33) during practice at the Detroit Lions training facility on Wednesday, Oct. 17, 2018 in Allen Park, Mich. (Detroit Lions via AP)

Detroit Lions running back Kerryon Johnson (33) during practice at the Detroit Lions training facility on Wednesday, Oct. 17, 2018 in Allen Park, Mich. (Detroit Lions via AP)

Detroit Lions tight end Levine Toilolo (87) during practice at the Detroit Lions training facility on Wednesday, Oct. 17, 2018 in Allen Park, Mich. (Detroit Lions via AP)

Detroit Lions running back LeGarrette Blount (29) during practice at the Detroit Lions training facility on Wednesday, Oct. 17, 2018 in Allen Park, Mich. (Detroit Lions via AP)

Detroit Lions running back LeGarrette Blount (29) during practice at the Detroit Lions training facility on Wednesday, Oct. 17, 2018 in Allen Park, Mich. (Detroit Lions via AP)

Detroit Lions wide receiver Marvin Jones Jr. (11) during practice at the Detroit Lions training facility on Wednesday, Oct. 17, 2018 in Allen Park, Mich. (Detroit Lions via AP)

Detroit Lions wide receiver Golden Tate (15) during practice at the Detroit Lions training facility on Wednesday, Oct. 17, 2018 in Allen Park, Mich. (Detroit Lions via AP)

Detroit Lions running back LeGarrette Blount (29) during practice at the Detroit Lions training facility on Wednesday, Oct. 17, 2018 in Allen Park, Mich. (Detroit Lions via AP)

Detroit Lions running back Ameer Abdullah (21) during practice at the Detroit Lions training facility on Wednesday, Oct. 17, 2018 in Allen Park, Mich. (Detroit Lions via AP)

Detroit Lions quarterback Matthew Stafford (9) during practice at the Detroit Lions training facility on Wednesday, Oct. 17, 2018 in Allen Park, Mich. (Detroit Lions via AP)

Detroit Lions running back Kerryon Johnson (33) during practice at the Detroit Lions training facility on Wednesday, Oct. 17, 2018 in Allen Park, Mich. (Detroit Lions via AP)

Detroit Lions tackle Taylor Decker (68) during practice at the Detroit Lions training facility on Wednesday, Oct. 17, 2018 in Allen Park, Mich. (Detroit Lions via AP)

Detroit Lions offensive lineman Tyrell Crosby (65) during practice at the Detroit Lions training facility on Wednesday, Oct. 17, 2018 in Allen Park, Mich. (Detroit Lions via AP)

Detroit Lions defensive coordinator Paul Pasqualoni coaches a defensive drill during practice at the Detroit Lions training facility on Wednesday, Oct. 17, 2018 in Allen Park, Mich. (Detroit Lions via AP)

Detroit Lions running back LeGarrette Blount (29) during practice at the Detroit Lions training facility on Wednesday, Oct. 17, 2018 in Allen Park, Mich. (Detroit Lions via AP)

Detroit Lions cornerback Teez Tabor (31) during practice at the Detroit Lions training facility on Wednesday, Oct. 17, 2018 in Allen Park, Mich. (Detroit Lions via AP)

Detroit Lions safety Charles Washington (45) during practice at the Detroit Lions training facility on Wednesday, Oct. 17, 2018 in Allen Park, Mich. (Detroit Lions via AP)

Detroit Lions cornerback Darius Slay (23) and Detroit Lions cornerback Nevin Lawson (24) during practice at the Detroit Lions training facility on Wednesday, Oct. 17, 2018 in Allen Park, Mich. (Detroit Lions via AP)
Personnel dept,: There could be some good news for the Dolphins on the injury front regarding defensive end Cameron Wake.
Wake could return to face the Lions after missing the last two games with a knee injury. Wake has averaged a little more than 10 sacks per season in his nine years with the Dolphins and had double digit sacks the last two years. He has one sack in four games this year.
He has to see how Wake feels Thursday after participating in Wednesday's practice to get an indication on his availability for Sunday, Gase said.
"He's an important piece for the amount of disruption he causes in the passing game," Gase said. "Really, it's going to be how he feels the next day."
The Dolphins are tied for 26th in the league in team sacks with 10. At the opposite end of the spectrum, they are No. 1 with 11 interceptions, and the 81.9 composite passer rating they've allowed in six games is fifth best.
Safety Maurice Smith was signed, taking the roster spot opened when linebacker Chase Allen was put on injured reserve.