From the video

Video: Last Minute Injury Updates (week 2)
you throw a random running back like Bashel Tuton in your flex
Mentioned at 15:03 – 15:05Captured by STACKED 6 hr after posting

STACKED’s take

NeutralUsage

Use in flex for roster flexibility

Lad Mcconi suggests using players like Braelon Allen in the flex position to maintain roster flexibility when managing injury-prone starters.

Braelon Allen headshotBraelon AllenRB · NYJPlayer page — value, ADP, projections, and every insight