Steelers heading into uncertain offseason PITTSBURGH (AP) - Steelers coach Mike Tomlin acknowledges that change in inevitable, even for one of the NFL's most stable franchises. This offseason could be bumpier than most. Pittsburgh's stunning 29-23 loss to Denver in the wild card round last Sunday put an end to a 12-5 season that felt underwhelming by the team's lofty standards. The AFC champions played from behind all year, getting drummed by rival Baltimore in the season-opener and never quite catching up. Though the Steelers steadied themselves after a so-so September, they struggled to stay healthy. Quarterback Ben Roethlisberger and linebackers James Farrior and James Harrison were among the starters who dealt with significant injuries while defensive end Brett Keisel and nose tackle Casey Hampton could require offseason surgery. With seven defensive starters in their 30s, the Steelers could go through a significant transition before the 2012 season kicks off.