From the video

Video: Ranking Every Week 2 Running Back as a Sit or Start
Dobbins is the clear early downback. He's the guy who's going to lead the team in carries... they're both going to go into the shaky flex category for me.
Mentioned at 22:08 – 25:05Captured by STACKED 6 hr after posting

STACKED’s take

Negative signalRole

Shaky flex due to poor team offense and tough matchup

J.K. Dobbins is a 'shaky flex' despite being the clear early-down back for Denver. The source cites the offense's poor performance and a tough upcoming matchup against Jacksonville as reasons for concern.

J.K. Dobbins headshotJ.K. DobbinsRB · DENPlayer page — value, ADP, projections, and every insight