I think most of the offensive's woes are mental. Yes fumbles happen but not being mentally sound often results in error. Throwing into coverage, not keeping the ball high and tight (way to much loose exposing while running). Correct the mental part and the errors will be reduced. As for should Sims get this start. IMO, if he's healthy, yes and if his struggle continues then make a change but yes, first home game against an opponent you should dominate at most positions, yep.. give Sims the start without a leash. Short leashing him will just cause anxiety. Tell him it's his time to shine and build him up.