Luis Ayala vs. Jeff Pfeffer — Career Comparison

Jeff Pfeffer built a career as a starting pitcher and Luis Ayala as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Jeff Pfeffer posted stronger surface numbers — ERA 2.77 and WHIP 1.210 compared to 3.34 and 1.342 for Luis Ayala. By the career numbers, Jeff Pfeffer had the better of this cross-role comparison — though era context would sharpen the verdict.