Joe Boyle vs. Mark Schaeffer — Career Comparison

Joe Boyle built a career as a starting pitcher and Mark Schaeffer as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Mark Schaeffer posted stronger surface numbers — ERA 4.61 and WHIP 2.000 compared to 4.98 and 1.444 for Joe Boyle. By the career numbers, Mark Schaeffer had the better of this cross-role comparison — though era context would sharpen the verdict.