I think one judges a decision by the information known at the time the decision was made. Just because I got home safely doesn't make the decision to drive drunk a good one. Just because Alcala later becomes a good pitcher, which can't be known at the time of the decision (and in fact, there is an extremely large chance he never becomes a good MLB pitcher, the same as any lower minors pitcher), doesn't change the math at the time of the decision. At the time of the decision, it was a poor choice to trade away a very good asset at a position of huge need during the time he was under contract. If, in fact, Alcala becomes a Cy Young contender, that'd be great. It won't change my opinion of the decision to trade him. And it shouldn't change yours. If you like the trade, great, but you had to have made that decision last summer, not five years from now.