At times, Chan Gailey showed he was willing to adjust. When he became Buffalo Bills head coach three seasons ago, he switched from a 4-3 defensive system to a 3-4. This year, he flipped his defense back. After determining Trent Edwards was the clear quarterback choice, Gailey pulled the plug two games into 2010 and elevated Ryan Fitzpatrick. Gailey obviously can adapt when he wants to. Yet his refusal to change, his stubbornness on certain players and strategies, will be what doomed him in Buffalo.