I think Brian got a lot of deserved flak for not being creative enough on offense, but certainly more ingenuity than the old Paul Hackett days.
Still, I think Sanchez and the rest of the offense is as much to blame for the woes on that side of the ball as Brian is. At the end of the day, a change - if only for change's sake - is certainly needed.
In the past, I criticized him for being too conservative at times (last year's Baltimore game was a clear example of this). But in the past year and a half, its really been more about him....A) trying to be too "Cute" with his play calling (lots of unnecessary motion, trick plays in bad situations, etc)
B) Never adjusting in the middle of the game until it was far too late (One game this year, they had like 3 end-arounds work in the first half and ended up running it like 15 times in the 2nd half for practically nothing)
C) Passing TOO much (I honestly think there was a good part of the year where he was calling plays like he was auditioning for a HC job (LOOK AT ME!!! I CAN RUN A HIGH POWERED OFFENSE!!!) rather than coaching for the Jets to win
There were numerous occasions where the game plans stunk and they never adjusted.
Part of this is absolutely on Rex, but Schotty absolutely had to go. He's awful and would have been gone 3 years ago if his last name was Smith.