FLEX Help - Best of the Worst

Trades and injuries have hurt my team in the last week. My choices for Flex and WR2 are:

Josh Gordon, Sanu, DK, Olabisi Johnson, McKissic, Mattison

By Lineup right now
QB: Watson
WR: Tyreek, ________
RB: Mack, Cook
TE: Ertz
Flex: MGIII, _______

I’m DK and and I might risk mattison since they’re playing the redskins or JD. I don’t trust gordon and doubt Sanu plays. Thielen might play so johnson likely won’t do much and I think they run more if just diggs. Not sure how the RBs are in Det to play JD but he should get touching.