The rookie right guard played 53 snaps, 14 more than any other player.
"We put him back in for a series at the end and I thought that was good for him," head coach Jim Schwartz said.
"He's a young guy that doesn't have very much experience, and the way the game went, we were able to get him maybe just a little bit more (reps) than some of the other guys."
The more reps, the more learning opportunities, and Warford seemed to take advantage of the extra work.
"He's definitely a good player," veteran guard
The Lions want a long look at Warford with less than a month remaining before they'll have to settle on that right guard spot.
"I was pretty excited about it," Warford said of the reps. "I thought I did some good things."
But he also cautioned, after going over the film with coaches Sunday afternoon, that he still has plenty to learn.
"That's the good thing about being in the preseason right now," he said. "This is the time you can fix those things and get ready for the season."
It was important for Lions coaches to see Warford hold his own against different competition and an aggressive defensive front like the Jets.
He's already admitted that playing against Lions defensive tackles
Like any rookie, he needs to brush up on technique and play more assignment sound, but Friday's game was a step in the right direction.
"I think coaches got a good look at how I can perform against other teams," he said. "I think they're happy with what I did overall."