When the Red Sox hired David Dombrowski as president of baseball operations in August 2015, they had a big league club headed toward its second consecutive last-place finish, yet hope in the form of the best farm system in baseball. Fast forward to today, and they're the two-time defending American League East champions but the system is thinner than it has been in more than a decade.
• Red Sox's Top 30 Prospects list
The changes in fortune in the Majors and Minors are related. Dombrowski hasn't been afraid to trade elite prospects to acquire the likes of Craig Kimbrel, Drew Pomeranz and Chris Sale.