Well said, Slimm. Another problem stands out to me - teams that draft RB's high feel the need to justify the pick by handing it off to RB's on early down, when they should be passing more often. People look at a given RB's volume stats and talk about how great and valuable he is. He may (or may not) be great, but we can look at things like EPA to see how valuable they are. With the exception of dominant running QB's - young Cam, Lamar Jackson, and Kyler Murray - even a mediocre passing game will be more efficient than a "dominant" running game.
If you had a team who was not beholden to justifying the investment, and you had a RB that was both dynamic as a runner and receiver, then I'd say, go ahead and spend a Top 40 pick. KC has actually done pretty well here. They haven't forced the issue to CEH, but on the other hand, he hasn't been worth the pick. Maybe he'll make some key plays in harsher weather, but to this point he's been less effective than D. Williams was last year and far less effective than Hunt (3rd RD) was before his incident.
The value of running in 2020 (in the NFL) is purely situational - short yardage, end of games, etc.. And, the RB is less important than the OC, QB, OL - and maybe even WR's - to the run game.
Speaking Top 40, I'd draft my 4th or 5th WR before a RB. People say you can never have enough CB's, and I don't understand why they don't apply the same logic to WR. Just as a D wants to be ableto match up as well as possible, the Offense should want to have a WR group that's as tough as possible to match up with. All the best offenses have answers for your answers. If you blanket Kelce and Hill, Mahomes has Watkins and Hardman.
Bringing it back to Miami, even if they spend 1a on WR, they'll only have two quality WR's - Parker and 1a. Williams would be a nice 4th or 5th option, but he doesn't separate and drops passes at a high rate. That's not a recipe for success. So, if Miami did go WR/WR, and assuming they picked good players, they'd be addressing a serious need with both picks.
I think you can get a guy like Hubbard with the 2b pick or maybe even in the 3rd, and he's the type of back I'd want to pair with this offense. The RPO puts D in conflict, and a RB with speed and burst can really take advantage of the creases it creates. Ahmed is kind of similar - just not as good - and you can see how his speed alone makes a big difference.