Ok, just ran the math. In the scenario where all 4 are 10-6, they will have the following conference records:
BUF - 7-5 (win NYJ, loss PIT, loss NE)
PIT - 8-4 (win BUF, win NYJ, loss BAL)
HOU - 8-4 (win TEN, win TB, loss TEN)
TEN - 7-5 (loss HOU, win NO, win HOU)
So, unless I am not seeing something, we are NOT in a 'win and in' scenario yet.