Arizona Cardinals: 2015 NFL Preseason Power Rankings

29 of 32

Jun 16, 2015; Pittsburgh, PA, USA; Pittsburgh Steelers quarterback Ben Roethlisberger (7) participates in drills during minicamp at the UPMC Sports Complex. Mandatory Credit: Charles LeClaire-USA TODAY Sports

4. Pittsburgh Steelers

2014 season record: 11-5

Top additions: RB DeAngelo Williams, LB Bud Dupree, WR Sammie Coates

Top departures: S Troy Polamalu, DE Brett Keisel, LB Jason Worilds

2015 projection: 12-4, 1st AFC North, 1st seed AFC Playoffs

Just when you think Big Ben is done and his career his on a downward spiral, he has the season he did in 2014.  He threw for 4,952 yards with 32 touchdowns and only nine interceptions in 2014. This was after a 4,261/28/14 season in 2013.  The yards and touchdowns were career bests for him in 2014.

The Steelers also got younger.  Troy Polamalu retired as did Jason Worilds.  Brett Keisel left.  They gained a linebacker in Bud Dupree who many teams seem to covet in the draft. Then they saw their long time defensive coordinator Dick LeBeau leave as well.  They could end up being the best in the AFC this season.