Bill Butler vs. Glen Perkins — Career Comparison

Bill Butler built a career as a starting pitcher and Glen Perkins as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Glen Perkins led in walk avoidance (BB%+ 178 vs 74), run prevention (ERA+ 106 vs 96), and skill-based run prevention (DICE+ 105 vs 95). Bill Butler held the edge in home run suppression (HR9+ 105 vs 80). Keeping the role difference in mind, the edge still goes to Glen Perkins.