Racing PositionsWhich closers are safe ... and unsafe?7dAJ MassFantasy: Surprises/disappointments among relievers7dTodd ZolaRelief Efforts: Impact of closers and K rate7dTristan H. CockcroftRelief Efforts: Plenty of closer changes in AL West7dTristan H. CockcroftVantage Point: Undervalued hitters7dAJ MassRelief Efforts: Frieri, Downs sharing saves7dTristan H. Cockcroft