COACHING Rutgers had several changes on the assistant coaching staff, but only on the defensive side of the ball. Defensive coordinator Joe Harasmyiak to become the UMass head coach, corners coach Mark Orphey left for the same role at Texas, and safeties coach Drew Lascari left to join the Jacksonville Jaguars. Those are three very good coaches and will be difficult to replace. Starting at the coordinator level, Rutgers hire Robb Smith and Zach Sparber as co-defensive coordinators. Smith was an …