I'm a Tannehill fan and I think he improved a lot last year...some don't see it. However, those last two games he was straight garbage, especially the Buffalo game. He was way off the mark on a lot of passes he routinely made during the season. Personally I think he was injured more than he let on. I remember he came out for a few series and Moore came in after one sack where I think he may have twisted his knee. Definitely wasn't the same QB who played one of his best games against the Patriots in that 3rd to last game.
If the O-line plays well and cut the sack, pressures and knockdowns down by at least 30% (that's going from 58 sacks to 41) we'll win 10 games.