The third overall pick in the 2017 draft and one of the most talented defensemen in the NHL, Heiskanen has spent time next to Jamie Oleksiak, John Klingberg, Esa Lindell, Ryan Suter and Thomas Harley, among others. The talented 25-year-old has 258 points in 425 games and is ranked the fifth best defenseman in the league by NHL.com, so it's not like all of this is holding him back. But there is a feeling that if Dallas can move the left-handed Heiskanen to his natural side and find the right partner, they could unlock another level in the Finnish wonder.