Gerardo Concepcion vs. Alex Kellner — Career Comparison

Alex Kellner built a career as a starting pitcher and Gerardo Concepcion as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Gerardo Concepcion posted stronger surface numbers — ERA 3.86 and WHIP 1.286 compared to 4.41 and 1.451 for Alex Kellner. By the career numbers, Gerardo Concepcion had the better of this cross-role comparison — though era context would sharpen the verdict.