Jay Aldrich vs. Mark Leiter — Career Comparison

Mark Leiter built a career as a starting pitcher and Jay Aldrich as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Jay Aldrich led in walk avoidance (BB%+ 132 vs 105), home run suppression (HR9+ 98 vs 80), and run prevention (ERA+ 102 vs 92). Mark Leiter held the edge in strikeout rate (K%+ 107 vs 64). Keeping the role difference in mind, the edge still goes to Jay Aldrich.