Erik Swanson vs. Bill Voiselle — Career Comparison

Bill Voiselle built a career as a starting pitcher and Erik Swanson as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Bill Voiselle posted stronger surface numbers — ERA 3.83 and WHIP 1.426 compared to 4.2 and 1.154 for Erik Swanson. By the career numbers, Bill Voiselle had the better of this cross-role comparison — though era context would sharpen the verdict.