David Aardsma vs. Cliff Lee — Career Comparison

Cliff Lee built a career as a starting pitcher and David Aardsma as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Cliff Lee led in walk avoidance (BB%+ 147 vs 76), skill-based run prevention (DICE+ 113 vs 99), and run prevention (ERA+ 114 vs 109). David Aardsma held the edge in home run suppression (HR9+ 114 vs 94). Keeping the role difference in mind, the edge still goes to Cliff Lee.