Jonathan Aro vs. Slim Vaughan — Career Comparison

Slim Vaughan built a career as a starting pitcher and Jonathan Aro as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Jonathan Aro posted stronger surface numbers — ERA 6.55 and WHIP 1.909 compared to 8.02 and 1.960 for Slim Vaughan. By the career numbers, Jonathan Aro had the better of this cross-role comparison — though era context would sharpen the verdict.