The 2015 Pittsburgh Steelers has the toughest schedule in the NFL. Ten of the sixteen teams they play are coming off playoff seasons. Even the “worst” teams on their schedule have realistic postseason aspirations this season. The toughest part of their schedule comes right after their bye week. They close out the month of November with a trip to Seattle. In December they will face the Indianapolis Colts, Cincinnati Bengals, Denver Broncos and the Baltimore Ravens. The five opponents went a combined 55-18-1 last season.