At 235lbs, Jeter just didn't run downhill, pretty obvious to most of us who watch the games. He should have been running like Earl Campbell but instead was trying to dance around behind the LOS like Leveon Bell.
What none of us really know: 1) has he always run this way or at one time (HS, OKST), was he 190 lbs and could run the ball effectively without being a downhill runner; and 2) Spav tried to coach him to run downhill but the habits were to hard to break or Spav didn't even try because he's not a great football coach.