David Manning vs. Ryan O'Rourke — Career Comparison

David Manning built a career as a starting pitcher and Ryan O'Rourke as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Ryan O'Rourke posted stronger surface numbers — ERA 4.84 and WHIP 1.324 compared to 16.2 and 2.850 for David Manning. By the career numbers, Ryan O'Rourke had the better of this cross-role comparison — though era context would sharpen the verdict.