"You'd have to ask him," Wilson told The Associated Press in a phone interview Friday from his home in suburban Detroit.
Cowher, who works as an NFL analyst for CBS, has declined to comment about his future.
Wilson did say the Bills' search continues. He couldn't provide a timetable as to when a hire will be made. Wilson said the team will not rush into deciding who will replace Dick Jauron, who was fired in November.
Wilson added he doesn't have a preference on whether the new coach has an offensive or defensive background.
Copyright 2010 by The Associated Press
