A history of MLB parity, part 1 (part 2)
Type B free agents had a higher average 2008/2009 WAR than their Type A counterparts
The Great General Manager Debate: NL Central edition
Did Moneyball increase the correlation between OBP and salary? Maybe.
How many championships has Mariano Rivera been worth? (part 2, part 3, part 4) Hint: the answer is 2.