The only RB's I see going early are Etienne and Harris.
Backs like Williams, Gainwell, Hubbard, Hill, and Carter will be there in the 3rd and later.
I can't see us burning a 1st on a RB and I doubt we would even spend a 2nd. Ditto on a center for those thinking Creed will go so high. But I wouldn't be surprised if we spend a 2nd on a CB. Some serious talent in this draft there and we have too much money tied up in that position IMHO.
The only positions I'm down with in the first two rounds are QB, OT, WR, and CB (maybe TE and RB if they are game changers). For anything else you have to be a contender who thinks they are a piece or two away. So no to Parson or Pitts or Harris or Etienne in the 1st. We just aren't good enough yet for such extravagance.