I would probably go with D. Thomas.. Brock and Thomas have chemistry, and will need to try to keep up with Brady in a shootout. GL in your decision!
Demaryius Thomas (No. Juicy matchup for Thomas)
Kamara (No, Saints RB has been on a tear)
Thielen (Yes, Powell playing the Bucs who gave up over 100 yards to the Cardinals a couple of weeks ago who rank 32 out of 32 teams for rushing)
McKinnon (No, same reason a Kamara)
Over both thielen and Thomas. Washingtons good against the pass, also I think you could see New England stacking the pass defense towards Thomas' side of the field as he's burned them in the past.