Riddick, a second-year running back who was drafted in the sixth round last year, has seen the Irish ranks triple in the space of a year with the addition of wide receivers
Tate was signed as a free agent in March, and Jones was drafted in the sixth round earlier this month.
“We’re starting to migrate here,” Riddick said Wednesday.
Tate didn’t need an excuse to miss Wednesday’s voluntary OTA workout, but he had a Presidential pardon of sorts.
Tate and his former Seattle Seahawks teammates were at the White House to be honored by President Barack Obama for winning Super Bowl XLVIII.
“It’s cool as heck, man,” Riddick said of visiting the White House. “Probably my first question for him will be, ‘How was it being with Obama?’ That’s definitely a huge highlight.
“From that standpoint (winning a championship), he knows what it takes to get there. I’m just trying to be a sponge and soak up all the information from him.
“He’s like an older brother. Every day he’s telling me things to make my game better -- more from a mindset standpoint. A lot of guys obviously have the physical ability. It’s the mental part that separates players.”
Riddick entered Notre Dame in 2009, Tate’s last season with the Irish. Jones got there in 2010.
Riddick called Jones as soon as he was drafted to welcome him to Detroit but had trouble getting through.
“It took me about 10 tries before he answered me,” Riddick said. “He was big-timing me.”