Adam Peterson vs. Jeff Wallace — Career Comparison

Adam Peterson built a career as a starting pitcher and Jeff Wallace as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Jeff Wallace posted stronger surface numbers — ERA 4.2 and WHIP 1.745 compared to 5.46 and 1.516 for Adam Peterson. By the career numbers, Jeff Wallace had the better of this cross-role comparison — though era context would sharpen the verdict.