Adrian Gonzalez has but 25 home runs for the Boston Red Sox this season, but he has lived up to or exceeded their expectations in every other way. He has been worth every bit of the seven-year, $154-million contract to which they signed him in April, even after accounting for the talent they had to give up in trade to get him from the San Diego Padres.
Carl Crawford, on the other hand, seems to have taken Theo Epstein to the cleaners in wringing a seven-year deal of his own (worth $142 million) from the Red Sox GM on the free agent market. So it goes in the risky world of big-name baseball transactions. If you succeed more than half the time, you can make it in this game for a long time.
With the offseason fast approaching, and a new crop of free agents and trade targets bracing for big moves, here are our grades for each of last winter's 50 biggest movers.