Help! Start/Sit question

Hey Footclan,

I’m in desperate need of help in picking starter for this week. Due to bye weeks and Martavis Bryant being benched I really don’t have a WR2 (will have to start Brandon Coleman or Trent Taylor). What I need help with is starting my flex. I’m down Buck Allen or Wendell Smallwood. The league is 14 team dynasty league with .5 PPR. The rest of my lineup looks like this

QB: Newton
RB: Hunt
WR: Julio
WR: Hot garbage
TE: Ertz
Flex 1: Doug Martin
Flex 2: Smallwood or Allen
Def: Carolina

I’m currently in first place but really could use some help this week.
Thanks in advance