Irish football coach Brian Kelly has more openings on his coaching staff after Notre Dame announced Monday that running backs coach Tim Hinton and offensive line coach Ed Warinner have left the program to pursue other opportunities.

Defensive backs coach Chuck Martin becomes Notre Dame's new offensive coordinator, filling the void when Charley Molnar left to become head coach at UMass.

2011 offensive intern Scott Booker will become a fulltime assistant, but what position he coaches will be determined at a later time.

Bob Diaco has also been promoted to assistant head coach and will share defensive coordinator duties with Kerry Cooks who coached cornerbacka in 2011.

Cooks, Tony Alford, and Mike Denbrock give the Irish flexibility when hiring new coaches, because they can shift between various positions. Alford coached wide receivers the last two years, but has been a running backs coach most of his career. Denbrock currently coaches the tight ends, but has extensive experience as an offensive line coach.

Mike Elston remains Notre Dame's defensive line coach.