You say "if Baltimore loses to Houston OR LA OR the Niners, guess who will lead the division?" ... if your answer is PIT, then you need to say AND not OR.
We have a 2 game lead and tie break on PIT. If PIT beats Browns twice (not a guarantee), we'd have to lose all 3 of those to fall out of 1st place. We just need to keep the train a rolling and not worry about what PIT is doing.
Just maintain that attitude and remember the 1st law of Italian auto racing ... "what is in my rear view mirror does not concern me".