I was at the Bama/LSU game when they were 1/2 in the nation. All the talk was how will Bama stop Fournette? Well, they shut him down.
For me, that is EXACTLY why you don’t sell the farm for a RB: there are very few who can do all three phases (run, catch and pass pro) at an elite level. If they can’t, you can get a completely serviceable (and cheaper) back later in the draft.