Allen was drafted to be an elite QB not a middle of the pack, game manager. A mid level finish in the league should be a minimum expectation for him this year. In the en, all that matters is that the Bills win games. The strength of the team is defense.
As for WR’s, again, nobody is going to be elite unless they have a QB who can get them the ball. Do you think Ju Ju would have taken the leap forward in Buffalo? It is mostly improbable.