David Carpenter vs. James McDonald — Career Comparison

James McDonald built a career as a starting pitcher and David Carpenter as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. David Carpenter led in run prevention (ERA+ 152 vs 94), walk avoidance (BB%+ 127 vs 75), and skill-based run prevention (DICE+ 129 vs 89). Role difference aside, David Carpenter holds a clear edge on every meaningful shared measure.