In the last three drafts the Seattle Mariners took college pitchers in the first round with the No 14, No. 20 and No. 6 picks.
Righthanders Emerson Hancock, Logan Gilbert and George Kirby are now ranked No. 30, No. 35 and No. 95 among all prospects at MLB Pipeline:
Top 100 Baseball Prospects | MLB.com
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That's one approach that could be undermined by prospect attrition. The Mariners once had pitching prospects Taijuan Walker, Danny Hultzen and James Paxton ranked higher.