WR is a deficiiency but its not as bad as people are saying. At one point the Bills had good wideouts yet fans still found problems with them. Woods(A blocker with a WR number), Hogan(just alacrosse player who would not make it on other teams), Watkins (Cant be healthy) and Goodwin (glass doll) were all together.
This is how I see it
A good QB can make WR's
Good WR's can not make a QB
Always fix the QB problem first, always.
You have to start with QB. And while it is still too early to tell with Allen, the number one problem with the Bills offense right now is QB, not WR, not OL, not TE. The general lack of talent on offense is part of the problem too but the great QB's find ways to make the WR's available to them work.