Jackson Kowar comes to the Mariners as a result of not one but two cost-saving moves: first, Atlanta sold low on former rotation stalwart Kyle Wright, trading him to Kansas City rather than paying the righty, currently rehabbing from shoulder surgery, for a year of nothing. Then, Atlanta flipped Kowar to the Mariners as part of the Jarred Kelenic/salary-dump trade of Marco Gonzales and Evan White. All of this is an annoyingly high price for the type of player who regularly appears on waivers in the leadup to spring training, but for the moment, let’s set aside the sting of losing Kelenic and agita about the team’s finances and instead focus on the perils but undeniable promise of Jackson Kowar.