FILE - Kansas City Chiefs defensive coordinator Steve Spagnuolo addresses the media during a news conference at Arrowhead Stadium in Kansas City, Mo., in this Thursday, J...

Kansas City Chiefs safety Tyrann Mathieu (32) returns an interception during the second half of an NFL divisional round football game against the Cleveland Browns, Sunday...

But all are credited with providing a steady helping hand, a sturdy shoulder and a willing ear to their team’s current head coach. PETTINEPettine went 10-22 (.313) as hea...