Sean McDermott must tackle Bills' biggest issue going into December stretch

Buffalo Bills v Houston Texans | Michael Owens/GettyImagesWhen you compare the season the Buffalo Bills had last season to this season, it’s very different. Don’t get me wrong, one common factor that each team has is that they have a winning record, but fans are more concerned at this point now than they were last season.

For example, the Bills won the AFC East in Week 13 last season after dominating the 49ers on Sunday Night Football. This season, they find themselves on the verge of getting knocked out of the playoff picture this coming Sunday if things don’t go their way.

The Bills have gone 3-4 since starting starting the season 4-0, and two of their losses have come in their last three…