The easiest thing in the world when evaluating a potential free agent is finding a reason to say no. He's too old. He's unproven. His primary numbers are trending the wrong way. His underlying stats raise red flags. He'll never leave his current home. He's not made for Boston. He'll command a huge salary. You'll have to pay him forever. And on and on it goes.
Author's Note: Each day this week, we'll advocate for the Red Sox to consider one of the top remaining free agents on the market in a feature called, "Making the Case.