Add to that as much as we've been running the ball in game so f late, Hollins is the best blocking WR so he's definitely on the field. Also factor in we go with 6 PL often or today saw Gilliam out there a fair amount plus at least one TE on the field. Probably don't want to sit Shakir
So if you got 6 OL, plus Allen, Cook, TE, Hollins only one spot left. Even without 6 OL only two spots left and 4 guys competing for them, Knox, Samuel, Coleman and Cooper. And Cooper has least playing time with Allen and as someone said maybe he's getting old?? Coleman is now been with Allen for 5 months so he's likely getting more comfortable with eachother too.