"Former Pittsburgh Steelers offensive coordinator Bruce Arians has agreed to become the Indianapolis Colts' new offensive coordinator, a league source told ESPN NFL Insider Adam Schefter.

Arians is scheduled to fly to Indianapolis on Monday to review and sign the contract.

Team sources had told ESPN senior NFL analyst Chris Mortensen Jan. 22 that the Steelers let Arians' contract expire against the wishes of quarterback Ben Roethlisberger. The sources said Steelers president Art Rooney II wants the team to regain its blue-collar identity on offense."