Possible WR Options
1. Go with their current crop: Welker, Edelman, Tate, Slater, Price.
2. A good, but malcontented, WR on a good team, like Vincent Jackson. Would cost at least a 2nd rounder, and is one NFL violation away from a year's suspension. That's the bad news. The good news is that he's on the trade block and that he has immense talent.
3. A good WR on a bad team that, at this point, might prefer a couple of draft picks instead of a top-flight, and expensive, WR. Such as: Lee Evans (Buf) or Steve Smith (Car). Don't know if these guys are available, but either one would be helpful to the Pats, for sure.
I do hope that option 1 isn't the one the Pats choose, because I don't think that's sufficient to get it done.