The Pirates and Yankees have the framework that will send the Yankees bust to Pittsburgh for probably nothing. Burnett has 2 years, 33 million dollars left on his contract and the Yankees are willing to eat most of it.
I like the deal for the Yankees as they are dumping someone who has been a problem on and off the mound. Plus they have Phil Hughes and Freddy Garcia still to be the number 5 pitcher.
As for the Pirates? Why not. There is a chance that in Pittsburgh he can thrive. There is no pressure and the hitting in the NL is a lot different than the AL East. It wouldn't surprise me if he won 12+ games for the Pirates.