In the 2nd half the Bills ran the ball 7 times on 1st down for a total of 15 yards. Allen had a run for 8 yards and Cook had a run for 8 yards. The other 1st down runs were for 1, 3, -2, -4 and 1 yard. A total of 5 attempts for -1 yard. I'm not sure what the Bills should have done but it had to be clear to Brady and McDermott that KC had made an adjustment on 1st down defense and they needed to try something different. But they didn't.