Plax, Wes Welker, Breylon Edwards?

I am trying to figure out who to start for my 3rd slot today. Plax seems to be a gametime decision so I am wary of him, but if he plays I have a feeling he will put up some pts. On the other hand Walker is going agaiinst the Buffalo p D and Brady is throwing the ball like a champ should. Edwards plays against Oakland secondary and could put up big numbers again. I have to figure this out in next 30 min's because Walker would start at 10am. Thanks in advance.