The Yankees don't need Soriano for all the reasons stated. They can just get him in the offseason, trading for him NOW does not mean they will make the playoffs and win the World Series. If anything their chances will be worse with the trade since they need PITCHING, not a power hitter. By trading away Wang, who is their #4, and is doing pretty decent thus far, they will have a collapse in the rotation. Even if Randy and Pavano get it going, Moose and whoever fills in the #4 spot are not a guaranteed bet, and will be ridiciulously inconsistent. Initially I bet this trade would put the Yanks on a short little winning streak, just b/c of change and a little shot in the arm with the return of Soriano, kindof a mental boost. But after that fades, the same ol' Yankees will return and everyone will be scratching their heads wondering why the trade didn't work.
Now hypothetically if the Yanks DID do this trade AND also made another trade where they got Burnett or Schmidt, then I would be more in favor of doing it. But their is no indiciation that will happen, so they made the right move by staying young.
This coming from a Tigers fan