Robbie Erlin vs. Andy Karl — Career Comparison

Robbie Erlin built a career as a starting pitcher and Andy Karl as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Andy Karl posted stronger surface numbers — ERA 3.51 and WHIP 1.375 compared to 4.87 and 1.297 for Robbie Erlin. By the career numbers, Andy Karl had the better of this cross-role comparison — though era context would sharpen the verdict.