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"It's not about scoring goals or setting up goals all the time if you're going to be on the ice for goals-against," the 18-year-old said. "Plus/minus was something I wanted to improve on, and be harder to play against. Play defense. And they turned me into a more well-rounded player."
Frost had 62 points (20 goals, 42 assists) in 67 games last season. He also was plus-15 after being minus-6 in 2015-16.
The Flyers acquired the 27th pick, along with a conditional 2018 first-round pick and forward Jori Lehtera, in a trade with the St. Louis Blues for forward Brayden Schenn on June 23.
"He's an extremely intelligent player," general manager Ron Hextall said. "That's his No. 1 asset. Really smart, reads the ice well. Got a very deft touch moving the puck. Good two-way player. … We believe it's a kid with an awful lot of upside."
That upside needed to be built over time. Sault Ste. Marie coach Drew Bannister said during Frost's rookie OHL season in 2015-16, it took him a while to trust that the coaching staff could find a role that fit his skill set.
"After Christmas as a 16-year-old, he became one of the more reliable hockey players for us," Bannister said. "He played against 19- and 20-year-olds and did very well and exceled and became a big part of our team at the end and the success we had in the playoffs.
"Morgan as a player is extremely intelligent the way he reads the game. He skates well, [has a] very high skill set and makes players around him that much better. He sees the ice very well. He's able to control the game, speed it up and slow it down, draw players, checkers, into areas that he wants them, to give himself a bit more ice or give his linemates more ice to create offensive opportunities.
Bannister said Frost has learned the importance of his play away from the puck.