Both are better than Antonio Carter or Kaleb Smith who had near zero contribution despite lofty expectations.
Did Trevor Speights ever officially participate on the team?
Speights and Smith medically retired before ever playing, so they didn't take up a scholarship let alone a starting spot. Carter was a depth guy and the hit he had on kick coverage against USC alone is more impact than Oben has had. Madden was a starter and former AA. Oben has been a depth piece at best and probably a downgrade from Mensah in all honesty.