This article from Bleacher Report has an interesting analysis comparing Melky Cabrera to a young Bernie Williams. While I'm not sure about the comparison, I do think that Melky was never given a real chance to be the next Yankee center fielder. He was definitely always viewed as a stop gap.
Also, as you've probably already heard, Mike Francesa broke the Bay to Mets signing on his radio show earlier today. The contract is for four years with a vesting option for a fifth.
Joel Sherman on the deal.