Racing PositionsWhich closers are safe ... and unsafe?17dAJ MassFantasy: Surprises/disappointments among relievers17dTodd ZolaRelief Efforts: Impact of closers and K rate17dTristan H. CockcroftRelief Efforts: Plenty of closer changes in AL West17dTristan H. CockcroftVantage Point: Undervalued hitters17dAJ MassRelief Efforts: Frieri, Downs sharing saves17dTristan H. Cockcroft