Edwin Jackson vs. Ryan Rolison — Career Comparison

Edwin Jackson built a career as a starting pitcher and Ryan Rolison as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Edwin Jackson posted stronger surface numbers — ERA 4.78 and WHIP 1.486 compared to 7.02 and 1.772 for Ryan Rolison. By the career numbers, Edwin Jackson had the better of this cross-role comparison — though era context would sharpen the verdict.