‘The personal foul on Villarrial was the Bills’ eighth flag for a total of 57 yards and represents the kind of undisciplined play that has Buffalo head coach Mike Mularkey on the hot seat in this cold city. “As far as playing, effort-wise, and focus, I haven’t seen a lack of that yet,” Mularkey said last week. But in this nationally televised game, the Bills – who fell to 4-10 after the 28-17 loss to Denver – were simply men behaving badly’