Jamie Arnold vs. Guillermo Molina — Career Comparison

Guillermo Molina built a career as a starting pitcher and Jamie Arnold as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Guillermo Molina posted stronger surface numbers — ERA 5.27 and WHIP 1.628 compared to 5.73 and 1.652 for Jamie Arnold. By the career numbers, Guillermo Molina had the better of this cross-role comparison — though era context would sharpen the verdict.