From the video

Video: Top 40 Running Back Rankings & Tiers - Week 1 Fantasy Football
going over and looking at Jordan Mason, it's a good match up against the Packers. I do not want to trust him week one, though. The word is it seems like he is going to be the starting running back, but again, we've never seen him be productive outside of two weeks as a Niner.
Mentioned at 16:33 – 16:56Captured by STACKED 6 hr after posting

STACKED’s take

Negative signalProjection

Unproven 49ers back; avoid Week 1 despite favorable matchup.

Despite a good matchup against the Green Bay Packers, Flock Fantasy does not trust Mason for Week 1; while the word is he will be the starting running back, he has only shown productivity in two weeks as a 49er, making him unproven and risky for Week 1 deployment.

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