So here's a link to an article discussing Mark Melancon, and whether or not he is mentally tough. The most interesting part is a quote pulled from the New York Daily News' Bill Madden:
"How did Cherington not know what the Yankees, who originally signed Melancon, told everyone who ever asked about him — that the kid had good stuff but a very delicate psyche not fit for pressure cooker environments like the AL East?"
Hope you're ready for this crap next year...