Todd Graham's Arizona State coaching staff continues to change.
Co-defensive coordinator and safeties coach Chris Ball is among two assistants leaving to join Mike Norvell's staff at Memphis, where he will serve as defensive coordinator. Tight ends coach and recruiting coordinator Chip Long will work as Norvell's offensive coordinator. Norvell, of course, left ASU in December after working as Graham's offensive coordinator the past four years.
Ball last ran the defense in 2011 at Washington State. This will be Long's first stint as a coordinator.
According to a source, Graham may lose at least one more coach off this season's staff.