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Link doesn't work, Doc, but I agree with you - you can't come in out of the pen and walk everybody. Still Jeff Nelson walked 5 guys per 9 in his career and pitched 15 seasons in the bigs. If nobody can hit you, sometimes you can get away with it.
I don't know that Cortes has that skill, and he would be the first guy I would trade away if somebody wanted a fireballing reliever in a deal for something I really needed. "See the 100 MPH fastball? Oooooh..."
Lueke is far higher for me as far as a bullpen prospect goes.
~G