The 49ers have another coach on staff who was a defensive coordinator at the NFL level -- former Raiders coordinator Jason Tarver. Other than that, the staff is an amalgamation of Kelly holdovers, 49ers holdovers and coaches O'Neil brought in with knowledge of the scheme. Kelly's second staff in the NFL was always going to be a bit of a motley crew given the reputation he worked up for himself in Philadelphia -- but does it allow him room to even make a significant alteration if he needed to?