My understanding is if we lose 2 and the Jets win 2, so we don't win the division we are left with the possibility of 3 teams being tied with us. Cincinnati, Denver, and Jacksonville.
Now Cincinnati plays Denver, so one of those teams will automatically be out. That leaves us with hoping that the winner of Cinci/Denver loses another game or that Jacksonville loses one game. Now if Cinci beats Denver, I believe we have the tie breaker over Cinci, due to head to head.
So the only way we are out is if we lose 2, the Jets win 2, Jacksonville wins 2, and Denver wins 2. Jacksonville plays KC in their last game, and Denver plays SanFran after Cinci.
The thing I don't know is what happens if 3 of us are tied at 10-6 but I am sure someone will chime in.