At FLEX, I'd either go Wells or Barber. I think Wells has a bit more upside than Barber considering their opponent (SEA) and Felix Jones' recent play could limit Barber's production.
I'd go with Winslow on the basis he's more targeted than Carlson. It seems the main benefactor of Branch's trade has been Mike Williams; Carlson was only targeted four times last week.
WR are solid starts. Welker is the clear #1 in NE and Crayton should see an increase in targets this week.