Based on his body of work and how he was before the All-Star break, you have to stick with Holland.  Maybe you could try Estevez or McGee on occasion in September, but even that is a less good option than Holland. Whether he will admit it or not, Holland is definitely fatigued after a year off and Coors Field ages pitchers in dog years. I'd still rather have him than anyone else. But remember how something similar happened to All-Star Huston Street in 2009?  That ended badly.