Maholmes is struggling, but at very least he has Reid on his side and knows what Andy teaches is a winning philosophy. Josh doesn’t have that. Also, Maholmes came up in a system that had more to work with and they had no D, so they spent there to get that, but they also invested a lot of draft capital in the offense, a lot of those picks haven’t worked out the way they might have wanted, but it looks like Rice is pretty good, and Pacheco is a starting RB, they definitely don’t have great WRs though. The Bills essentially have given Allen, Diggs and just wasted a ton of resources on the D. It’s not like he’s ever had anything to work with and is being supported by not having to be perfect.
Again, Allen has regressed, a lot. That said, I have to put that at 20% him, 30% terrible roster management and 50% coaching.