Start at FLEX? pls help

Full PPR.

Antonio Gibson v BAL (bad matchup)
Scotty Miller v LAC (TB banged up)
Brandon Aiyuk v PHI (Deebo limited)
Andy Isabella v CAR (if Kirk misses)

Who do I start? Would have to drop Hardman or Aiyuk for Miller or Isabella.

I’d play Aiyuk.
Miller is GTD, Gibson has a tough matchup and is losing touches, and Isabella is hard to trust when hes running so few routes.