Mel Parnell vs. Jesen Therrien — Career Comparison

Mel Parnell built a career as a starting pitcher and Jesen Therrien as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Mel Parnell posted stronger surface numbers — ERA 3.5 and WHIP 1.413 compared to 8.35 and 1.691 for Jesen Therrien. By the career numbers, Mel Parnell had the better of this cross-role comparison — though era context would sharpen the verdict.