Man, are they really sweating this guy in Seattle. Most think that he can make the Seattle d-line better than it was last year. From what I have seen in forums, the majority don't care about his coming legal entanglements. He would be under less pressure in Seattle I think, as he tries to raise his stock, but in Dallas, he will be front and center, assuming he can get on the field early. The knee is still something of a concern in that regard, since he will be barely one year removed from the injury he suffered last September.
My opinion has evolved on him and if it were not for the connection to Marinelli and his 2012 Pro-Bowl, I would be a little less inclined to see it as a great move. That said, without him, the Cowboys "might" be forced to do something silly on draft day in order to land Donald. Melton would definitely make draft day less stressful in the war room. He was coming into his own before the ACL, and judging by what looks like "carnivorous" convictions, appears pretty salty for a DT, and you definitely want that (to a point) at 3 Tech. Hard to believe that this guy was a former running back.