From the video

Video: Ranking Every Week 1 Running Back as a Sit or Start
you got a split between Jordan Mason and Aaron Jones. Feels like the kind of mojo out of camp is that Jordan Mason is likely going to be more so the guy, but this is definitely going to be a split backfield
Mentioned at 30:24 – 59:03Captured by STACKED 6 hr after posting

STACKED’s take

NeutralRole

Shaky flex option in a split backfield with Aaron Jones

The source views Jordan Mason as a shaky flex start due to an expected split backfield with Aaron Jones, though camp reports suggest Mason may be the primary guy. He is compared to Rico Dowdle in terms of role and is used as a benchmark for the 'shaky flex' tier, where J.K. Dobbins is preferred over him.

Jordan Mason headshotJordan MasonRB · MINPlayer page — value, ADP, projections, and every insight