Last winter, as the Mariners prepared for a season of non-contention, they made a minor addition that drew little intrigue. They selected Brandon Brennan in the Rule-5 draft from - a 27 year old reliever from the Rockies who even the most well-researched experts had barely more than a couple notes on. Encouraging him to use his changeup far more than ever before, the Mariners whipped a groundball specialist out of the ether from Brennan, and few players should benefit more from a full season of capable infield defense in lieu of the waking nightmare Seattle ran out for much of 2019.