The only chance we would of had to win the game was go for the 4th downs. It all depends whether you convert the 4th downs but with a player like Allen who is capable of great and bad you don't know for sure they would not have converted one and got a shot in the arm as a result. One of the plays ( before the 4th down FG before the half) Allen makes a great throw to knox - before that play I thought 'I can't see the bills converting here' and they did.
The same logic can apply to the defence - let's be honest with ourselves that the chance they stop KC on offence was minimal at best, so take the opportunity into your own hands.
Ask yourself what would Reid have done with the bills personnel? What had we done all season? We had continually gone for 4th downs. As soon as we play a better team and are behind, do we change what we do?