According to counts culled from team media guides, the pre-Luhnow Astros employed an exactly average-sized 51-member player-development staff in the spring of 2011, including all coaches, managers, and front-office executives devoted to player development. By the spring of 2015, that headcount climbed to 78, mirroring the rapid growth in PD departments around the game. Between the springs of 2011 and 2018, the average size of the staffs assigned to player development by MLB teams increased by 51 percent, from an average of 51 in 2011 to an average of 77 in 2018. (The deep-pocketed Yankees led
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