I agree with this point 100% - and apparently CBC Sports does too:
http://www.cbssports.com/nfl/blog/nfl-rapidreports/20824515/postgame-analysis-texans-21-bills-9---
"With Sunday's game hanging in the balance at Houston's Reliant Stadium, one coach made sure to use one of the best running backs in the league. The other didn't.
The pass-happy Bills (3-5) were unable to find the end zone, going 0 for 3 in the red zone and scoring on only three-field goal attempts. Their inconsistent play on offense was in part due to a lack of touches for RB C.J. Spiller, who averaged 7.3 yards per carry heading into the game. Spiller looked explosive in limited opportunities but finished with only six carries for 39 yards (along with five receptions for 63 yards)
We would like to [get C.J. the ball], and we've got to try to do that on a more consistent basis,” Bills coach Chan Gailey said. “Some weeks are better than others. ... They surprised us with a defense we hadn't seen that much, and we had to alter. I've got to do a better job of adjusting.”
The bolded quote says it all. Pass-happy Chan admits he cannot adjust....tell me something we don't already know.
what's disturbing is that it took an injury before a coaching decision to remove AW from the field. Pathetic.