Robert Woods or Gernimo Allison

Here is my lineup and bench with who is starting. It’s .5 PPR Any advice on who I should move into my flex?

QB B Rothlisberger
RB J Conner
RB TJ Yeldon
WR S Diggs
WR Amari cooper
TE T Kelce
FLX Robert Woods
FLX Matt Breida

Bench M Lynch
Bench L Bell
Bench Kerryon Johnson
Bench Javoris Allen
Bench Robby Anderson
Bench Gernimo Allison
Bench Brandon Marshall

Any advice??