Perhaps he didn't think he could mentally cope with another season like this one where he wasn't hitting mendoza for a long time in New York where it would be pointed out on a very public & very regular basis, did he produce a little bit yes, but you can't just throw up a bunch of homers while you're hitting less than .200 and expect not to hear about it at the Yankees. There's also maybe the fact he knows next year you might see Austin Romine pushing for a roster spot & in 2 years maybe see Gary Sanchez as well and figure "oh well, they've kept the hold of those guys for a reason" - either way it goes, he's with the bucs now and well, that's not a place I'd want to be playing ball!