If you move anyone out of the lineup I would remove Williams. You have to leave in Dez because every time DAL gets in the redzone they look for Dez on a jump ball.
As a lifelong Redskins fan, although it's been tough to keep my head up recently, I would be very skeptical of starting 2 WASH WRs. Moss, especially in PPR, is a good play, but Gaffney is so up and down, like Rex. I do expect Rex to put up some numbers and the NYG have been shredded over the last 3 weeks. However, in a semifinal to start 2 Skins WRs is really risky. D Thomas (DEN) available? Or I think i may leave Williams in and hope that Mike Jenkins (Q) does not play for DAL.