First off, with the talent that we have on this year's offense, I'll say we are stacked. Plus the fact that Rob Gronkowski will more than likely be coming back a lot sooner then expected will definitely help but think about it.
HC Bill Belichick
OC Josh McDaniels
QB Tom Brady
RB Stevan Ridley, Shane Vereen, Leon Washington, LeGarrette Blount, Brandon Bolden ( that's one of the most talented and deepest groups in the NFL from a Quality + Quantity standpoint)
WR Danny Amendola, Julian Edelman, Kenbrell Thompkins, Aaron Dobson, Josh Boyce + Shane Vereen serves as an extra receiver. And you know both Amendola and Edelman can be more explosive than Welker.
TE Rob Gronkowski is returning, Jake Ballard is solid, Daniel Fells, Hooman, and Zach Sudfeld is hungry with plenty of upside
OL Logan Mankins, Sebastian Vollmer, Ryan Wendell, Nate Solder leading the way in pass protection and run blocking schemes. One of the best in the league
2 that may break out as effective "Do it All" Weapons - Julian Edelman and Shane Vereen because you could line up both ANYwhere on offense, inside, outside, backfield, whatever.
Also, checkout the link on Julian Edelman, he is my candidate.
julian edelman 2012 highlights - YouTube