On the other hand, if a prior coach did something and that prior coach was an abject failure, perhaps his techniques should be viewed with some degree of skepticism.
I appreciate the benefit of having someone in the box, but does it have to be our OC/QB coach? Can't we put, say, Fisher in the box and have him call down to Beck?
I can think of several OCs (or HCs with play-calling responsibilities) who are not in the box. Lane Kiffin comes to mind. Chip Kelly as well. Chris Ault. And I believe Gus Malzahn also hangs out on the sideline. Point being, one can call plays from the sideline without too much trouble. And for the OCs who are in the booth, do those teams have a separate QB coach or co-OC who can provide face-to-face coaching with the QB on the sideline?
While i'd say the problems on offense last year have much less to do with him being in the box, than it had to do with his ability to adjust and teach the system. That's like saying "look watson wore white shoes last year and our offense sucked so this year Beck better only wear black shoes." Get over it, Beck will do what he feels will get the best results, and if there is some sort of lacking, i'm sure he'd be willing to make the necessary adjustments to get it fixed