By the time RBs get to the NFL they are highly skilled, they are incredible athletes.
Sure there are those that are better than others but if any of them are given a hole to run through they will get 4-5 yards avg every single game.
How are holes made? Fantastic blocking from the OL. If you have the best OL do you not by default have a good to very good offense?
Is the RB logic not the exact same about QB if not more so since there are less than half as many QBs (thus even more skilled athletes)
If you have NFL talent WR and a QB with more than 3 seconds to throw, you’ll have solid completions…
Thus, you draft OL in the first round all day. OL, DL, and LBs
After that… just plug and play
Taking a QB first few rounds is stupid