1. McDaniels is nursing a grudge for Renfrow’s fumble against the Cardinals last season that resulted in the game-winning TD in OT and capped their comeback; that was the first major embarrassment on McDaniels’ record during his tenure here, and he’s petty enough to hold that against Renfrow despite the fact that the latter got concussed on that hit and was already playing hurt.
2. McDaniels has become bored of using the scrappy white slot receiver concept, even though numerous guys were at their best when he coached in New England (Welker and Edelman are obvious ones, but can’t forget Amendola and Chris Hogan).
3. McDaniels is so obsessive about his “perfect offensive scheme” that he’s elected to not use Renfrow since the latter’s freestyle moves are too flashy.
4. Looping back to pettiness, Renfrow was likely loyal to Carr before he was traded, so McDaniels is salty about that… this may be bleeding over into how Davante is being used this year as well.
5. McDaniels played wideout at John Carroll in college, so he sees himself in Renfrow. But because he never amounted to much there, he’s jealous/envious of Renfrow’s success at both Clemson and in the NFL.
6. McDaniels is a sociopathic doughboy idiot who cannot coach to save his life.

Can anyone else think of something not covered here?