You think those moves are salary dumps, we get that. However, when you're shown that the other team got a significant return, and that financially, plenty of other teams are capable of making the same moves, you ignore the points, yet continue on the same path. You're making a point, covering your ears when someone presents a counter argument, and then continuing to make the same point over and over and over again.
Also, what plays out on the field has to do with a lot more things than just injuries. Time and time again you want to make it seem like the Yankees only win because of how much money they spend, when their are a number of other significant factors at play. These factors include smart front office decisions, contributions from cost-controlled players, chemistry (who knows), coaching and managerial decisions, luck (involving more than just health), among many other things. You continue to spout only what helps prove your point, yet you ignore the evidence and logic which counters your point.
As for the actual argument, 1-5, the Red Sox starting rotation is simply better than the Yankees. Lester, Beckett, and Lackey, for all the reasons already mentioned, is a better top three than Sabathia, Burnett, and Pettitte. The bottom part of the rotation is closer, mainly because it hinges almost entirely on unknowns (how far Buchholz and Chamberlain/Hughes progress, how Daisuke rebounds, and how Vazquez's numbers translate back to the American League).