Arians, a Steelers assistant since 2004 and offensive coordinator the last four seasons, has an expiring contract. He had been mulling retirement, much like Steelers defensive coordinator Dick LeBeau.
Arians will re-sign with Pittsburgh for another year, according to the source, as LeBeau has done this offseason. Those moves will ensure that the crux of coach Mike Tomlin's staff is in place for the 2011 season, though the team will likely be looking for new coordinators in 2012.
The Steelers are currently without a secondary coach after Ray Horton left to become offensive coordinator of the Arizona Cardinals. The Steelers often promote from within, with linebackers coach Keith Butler, for instance, the defensive coordinator in waiting.