Photo: Though he started the 2013-14 season in the AHL, defenseman Kevan Miller eventually established himself as a regular part of the Boston Bruins NHL roster. (courtesy of Francois Laplante/Freestyle Photography/Getty Images)
The Boston Bruins hold a boatload of depth in their prospect systems despite top prospects such as Torey Krug and Dougie Hamilton graduating this season.
Photo: Selected 37th overall in the 2013 NHL Draft by the Los Angeles Kings, forward Valentin Zykov had a solid 2013-14 season in the QMJHL, posting 23 goals and 40 assists in 53 games. (courtesy of Richard Wolowicz/Getty Images)
As with every Top 50 ranking, difficult decisions had to be made towards the bottom section, and players were left out for a variety of reasons.
Photo: Goaltender Malcolm Subban has made a smooth transition to professional hockey, and has a 2.39 goals against average through 26 AHL games. Subban was selected 24th overall by the Boston Bruins in the 2012 NHL Draft. (courtesy of Michael Tureski/Icon SMI)
There are not too many significant changes to the Boston Bruins Spring Top 20. There were a couple notable graduations however, led by former number one prospect Dougie Hamilton.
Photo: Forward Craig Cunningham made his NHL debut this season on December 17th, 2013. Selected in the fourth round of the 2010 NHL Draft, Cunningham is in his third season of professional hockey. (courtesy of Fred Kfoury/Icon SMI)
The Boston Bruins have stockpiled prospects and the Providence Bruins are starting to see some of those players shine. Multiple prospects are starting to see time at the NHL too as the Bruins have dealt with the injury bug this season.
Photo: Rookie defenseman Torey Krug has been stellar for the Boston Bruins this season. The undrafted 22-year-old has eight goals and nine assists through 30 games. (courtesy of Steve Babineau/NHLI via Getty Images)
The Boston Bruins have only one prospect currently playing at the major junior level, and most of you have probably never heard of him. His name is Mitchell Dempsey.