As of now it doesn't feel like that's a real possibility. The QB's under Moore often find success because Moore's run game always ended up forcing 8 in the box because the run game was so incredibly good. We have question marks on Oline (mostly guard because our LG was awful this past year but Ruiz also struggles a lot in the run game). Despite what many think, we also have question marks at RB. Miller is always injured. Edwards-Helaire has struggled for years to be dependable for anything outside of a handful of touches a game. And sadly, Kamara is 30 (or will be by starting of training camp) which is where almost all RB's fall off a cliff in performance. Very few were able to hold it off till 31.
As of now, I just don't think we're going to field an offense that can force 8 in the box.
There's actually a perfect example of Moore with an offense similar to our situation. With the Cowboys and Eagles, Moore had great talent at RB that was also young. But with the Chargers he had an awesome RB who's age caught up to him (Ekeler). The Chargers ended up with the 18th offense in the league (bottom half). I watched a lot of those games and it was ugly. It was the one season where Moores offense couldn't force 8 in the box and the offense struggled because of it. Herbert is a better QB also then Carr by a bit, and better than Rattler by miles.
I don't think drafting RB is a luxury this draft. I think its necessity. As is IOL.