Lions beat writer Kyle Meinke on Theo Riddick's role in 2015:
HC Jim Caldwell has already said he expects Riddick to be a bigger part of the fold this year. But I think it could end up being mostly as a pass-catcher. I could see a scenario where many of his reps came out of the slot.
Think of it this way: Detroit's running game was awful last year, finishing 28th. Reggie Bush struggled with ankle injuries for a couple months. And the Lions still gave Riddick only 20 touches on the ground.
If Detroit didn't think Riddick could help on the ground under those circumstances, I have a hard time seeing how it happens this year after adding Ameer Abdullah. Unless Riddick totally remakes his game, which I guess is possible. I'm just not banking on it.
Riddick averaged 5.0 catches for 53 yards for 13.2 fantasy points in PPR formats in the five games that Reggie Bush missed last season, but the Lions’ decision to draft Ameer Abdullah throws cold water on Riddick’s chances of becoming a dependable PPR back.