James Cook holds a 10.8% edge in Superflex dynasty value.Updated 9/28/2026
Achane is a true difference-maker on a per-touch basis in Miami’s explosive offense, giving you weekly spike-week upside that can swing matchups. He’s younger and carries more dynasty insulation via big-play profile plus receiving ability in a scheme built on space and speed. If Miami keeps him in the 12–16 touch range, his efficiency and TD chances can outpace workload concerns and justify the 11.3% value premium.
Cook is the cleaner bet for steady volume in a top-tier Bills offense, with strong weekly floor from rushing + receiving usage and less reliance on breakaway plays. Buffalo’s scoring environment keeps his TD/yardage equity high even when he doesn’t rip off long runs, which matters in lineup stability. He’s often cheaper to acquire than Achane and can be a pragmatic way to buy reliable RB production without paying for peak-ceiling outcomes.
Achane if you need week-winning ceiling; Cook if your roster is already strong and you want bankable points with less volatility.
Achane due to age and higher ceiling/market insulation, unless you’re flipping RBs quickly—in that case take Cook if he’s the easier sell in-season.
At only an 11.3% gap, it’s close—prefer Achane straight up, but Cook plus a meaningful add is the better dynasty value.
15% of champions
De'Von Achane was on 1,043 championship rosters
13.5% of champions
James Cook was on 942 championship rosters
Worth more?
Achane is worth more right now and the gap is reasonable given age and ceiling.
Trade?
If moving off Achane, ask for Cook plus a 2nd (or equivalent flex piece); if buying Achane, try to pay Cook plus a 3rd.
Superflex?
In SF, the RB-vs-RB gap matters less than upgrading QB/WR, so take whichever side helps you pivot into a stronger premium position.
See exactly what De'Von Achane and James Cook are worth side-by-side in our Trade Calculator.
OPEN TRADE CALCULATORWhat Championship Rosters Have in Common
78.4% had a top-10 RB. The real champion profile from 9,983 rosters.
Stars vs Depth
Champions held 38.3% of value in 3 players. Concentrate, don't spread.
Who Wins Lopsided Trades?
The value "loser" wins titles more often. Don't fear the overpay.
Championship DNA Players
Bijan 23%, Puka 19.3%. The players who keep showing up on title teams.