"Questions about Bruce Arians' future as Steelers offensive coordinator ignited after team president Art Rooney II said this week that "senior-type" assistant coaches could be retiring.

Arians, 59, has more than 35 years of coaching experience and reportedly contemplated retirement last offseason before quarterback Ben Roethlisberger talked him into returning.

With 74-year-old defensive coordinator Dick LeBeau — who guided the NFL's top-rated defense this season — saying he will return in 2012, speculation has shifted to Arians."