Kirby Wilson, who has coached the Steelers running backs the past seven seasons, will be interviewed Wednesday for the offensive coordinator’s job with the division-rival Baltimore Ravens. The Steelers granted Wilson permission to do so, which was required because he has one year left on his contract with them. Wilson was in line to succeed Bruce Arians as the Steelers offensive coordinator, and it would have occurred in 2012 except that Wilson was severely burned in a kitchen fire at his condo before the Steelers playoff game in Denver that January. When they forced Arians out after the season, Wilson’s coaching status was uncertain, and Mike Tomlin hired Todd Haley. Coincidentally, the other coach Tomlin interviewed for the offensive coordinator’s job was Jim Caldwell. Now Wilson is going after the vacancy created in Baltimore when Caldwell left to become head coach of the Detroit Lions.