Manny Aybar vs. David Williams — Career Comparison

David Williams built a career as a starting pitcher and Manny Aybar as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Manny Aybar led in walk avoidance (BB%+ 109 vs 85), home run suppression (HR9+ 102 vs 91), and skill-based run prevention (DICE+ 95 vs 86). David Williams held the edge in run prevention (ERA+ 108 vs 91). Keeping the role difference in mind, the edge still goes to Manny Aybar.