Luis Castillo vs. Willie Collazo — Career Comparison

Luis Castillo built a career as a starting pitcher and Willie Collazo as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Luis Castillo posted stronger surface numbers — ERA 5.06 and WHIP 1.969 compared to 6.35 and 2.294 for Willie Collazo. By the career numbers, Luis Castillo had the better of this cross-role comparison — though era context would sharpen the verdict.