18. Zach Trotman
The 24-year-old defenseman showed that he has what it takes to stay in the NHL last season. Trotman provided a strong defensive core when replacing Dougie Hamilton in 2014. Production could dip if Trotman is not once again placed alongside Zdeno Chara, but it seems like he is here to stay. He five points in his 27 games last year proved a solid start to an NHL career.