He's missed team meetings, and has been healthy scratched and benched for that. Some teammates have told him to "grow up" (Dion Dawkins), while others have said that he's still quite young (Tyrell Shavers) and that's a product of his youth.
I'm not saying he's going to be a perfect solution for our receiving corps (and I'd still take a receiver with our first or second), but Buffalo's management has been just as shitty with their football team as their hockey team, and when he's had those chances, he's produced. For a fifth-round pick, learning from other receivers like Adams and vets like Stafford, I'm willing to take that chance, and it has to be better than spending ten million on Tutu for what he's produced.