There are 3 major reasons not to consider it, and they all revolve around winning:
1. Positional Value
A running back simply isn’t worth what a lineman or even a receiver is. A huge part of this is the realization over the last 20 years that the QB, scheme, and Oline have more to do with the running game than the actual RB. That’s not saying Derrick Henry won’t outproduce Miles Sanders, but A good RB vs a great RB is one of the smallest margins of variance when it comes to team finish. We can say the best Olines or the best dlines are getting their teams to the CCG and SB, but the finishes of the best running backs have a wide berth of results. LV, CLE, TEN… doesn’t seem to matter if they have one or not. Get the oline for him to maximize his talent, and suddenly like KC or PHI you don’t need him at all.
Add to it that there are no 400 carry RBs anymore, and any team Bijan goes to will employ him as a part time player. We’ve seen it in many crucial situations where Pollard, Zeke, or both are on the sideline. Lineman, particularly offensive lineman, are there every single snap. Get Bijan and you still need 2-3 other RBs to fill the gaps. Get Jamar Chase and he locks down that X position.
2. Alternative Option
You could have signed Miles Sanders this offseason for 6m$ AAV and saved a first round pick. At no other position can you get a pro bowl player in his prime for so cheap. Compare that to DE, or LT, or DT.
Do a comparison exercise: Would you take 1st round superstar Saquon with good non1st DE Dorance, or 1st round superstar Micah with good non1st RB Pollard? The difference in pass rusher talent from good to great is severe. DT from good to great is severe. LT is severe… RB is not. The stats are pretty but the impact is closer when behind similar lines, in similar offenses. Are we seeing a tremendous amount of drop off from 2022 Pollard than we saw from 1300 yard Zeke? Are the Vikings stagnated on potential in the Dalvin Cook era due to everything AP accomplished before him? The RB is less dynamic, but the team overall is regarded similarly from one player to the next.
Additionally, you don’t find as big of value in pass rushers at the highest tier that you do at running back past the first round. Joey Bosa, 1st rounder. Donald, Micah, Reddick, Nick Bosa, 1st rounders. TJ & JJ Watt, Khalil Mack, Deforest Buckner, Daron Payne, Fletcher Cox, Ndamukong, Chandler Jones… all these guys are first rounders. Remember that Micah was available right at that 10 spot you’re giving up for Bijan. So was Donald and so was Cox. This is the prime area for superstar Dline talent right after all the QBs are taken.
3. ROI
Zeke was done by 27. Todd Gurley done by 26. And these were perennial pro bowl guys. If a RB actually makes it to 30 like Adrian, it’s fantastic. But Micah is going to be good for at least 10 years. Zach Martin could play until he’s 35. They’re more expensive, but you don’t see teams disappointed with the fact they have to pay their star lineman. The only teams disappointed are the ones that don’t have these players good enough to pay.