I would roll with Dez Bryant as well. The Jets were just average against the pass last year, and Bryant has been looking great so far. Plax isn't a bad call, but I think Bryant and Witten are going to see a lot of targets.
I would also roll with Blount, who will definitely get the lions share of the carries. I don't know what the mix is going to be between Hightower, Torain, and Helu, but Shanahan is notorious for swapping RBs out. Remember these guys from the Broncos? (Mike Anderson, Tatum Bell, Mike Bell, Cedric Cobbs, Travis Henry, Selvin Young, Peyton Hillis, Micheal Pittman, Ryan Torain). All those dudes were starters at some point between 2005 and 2008.
It's time to put down the crack-pipe and step away from the keyboard.