Decisions decisions in the flex

In a full PPR league, who should I start in my flex?
Josh Gordon (vs Pit)
Marshawn Lynch (vs LAR)
Peyton Barber (@NO)
Jamison Crowder (@ ARI)

Thank you

Lynch and barber have horrible match ups. Both against projected top 5 defenses. Gordon is a bit of a question mark this week. Crowder is a wr 2 and would make a great flex play.

Hard to judge what you need at beginning of season.

But
Crowder if you need to play it safe…
Gordon if you need the boom… Could be a bust week 1 but he also has the most upside if he plays