Bruce Chen vs. Willie Collazo — Career Comparison

Bruce Chen 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. Bruce Chen posted stronger surface numbers — ERA 4.62 and WHIP 1.413 compared to 6.35 and 2.294 for Willie Collazo. By the career numbers, Bruce Chen had the better of this cross-role comparison — though era context would sharpen the verdict.