"His smarts for the game were just off the charts, his hockey IQ," Haviland said. "We used to call him a human breakout here. He could turn on a dime and his first two steps were explosive and he was gone, and could make that first pass. He was an elite player at the college level."
Colorado College was a rebuilding program, going a combined 13-50-9 during Slavin's two seasons there, but it proved to be a perfect learning environment. He played in all situations, running the power play from the point and logging heavy ice time.
"He was playing 28 minutes a night here," Haviland said. "Sometimes maybe you can be on a team that's maybe in a rebuild, but you're playing and that's a big part of your development. … and Jaccob took advantage of those minutes and really worked on his game day in and day out and just got better and better."
When Slavin left Colorado College to turn pro in 2015, Haviland figured correctly his stay in the American Hockey League would be brief. Slavin played 14 games with the Hurricanes' affiliate in Charlotte in 2015-16 before being called up to make his NHL debut against the Toronto Maple Leafs on Nov. 20, 2015.
He never returned to the AHL.
"His first shift, I knew he was a player," Hurricanes center Jordan Staal said. "He was one of those kids that he came in right away and made a couple plays and you were like, 'Oh, he's going to be around for a while.'"
Carolina made sure of that when it signed him to a seven-year, $37.1 million contract extension, which kicked in this season, on July 12, 2017. The average annual value of $5.3 million looks like a bargain now for a top pair defenseman making a name for himself in this postseason.
His offensive production has been a bit of revelation -- he had 31 points (eight goals, 23 assists) in 82 regular-season games this season -- but hasn't surprised the Hurricanes.
"I don't think anything's different," defense partner Dougie Hamilton said. "I think maybe it's just people see it more."
This is Carolina's first time in the playoffs since 2009 and something new for Slavin; other than two first-round exits with Colorado College in the NCHC's postseason tournament (all eight teams qualify regardless of record), he said he hadn't played for a team good enough to make the playoffs since, "youth hockey, probably," so he has been enjoying this run.
"This is the best time of the year, and it's a lot of fun playing out there," he said. "The intensity revs up, the game revs up and those are the games everyone wants to play in."
Slavin also has a reminder at home that keeps everything in perspective; he and his wife, Kylie, had been on an adoption waiting list since before this season and, by fate, their infant daughter, "Baby E," arrived at the start of the playoffs. The Slavins are not revealing the baby's name or other details until the adoption becomes official.
That meant missing a couple of practices and flying back to Raleigh from Washington between Games 1 and 2 of the first round in addition to the all other craziness of becoming a first-time parent. The break since the Hurricanes finished the second round with a 3-0 victory against the Islanders in Game 4 on Friday was a blessing in that it gave Slavin some free time to spend with his daughter before turning his attention back to the playoffs and the Bruins.
"My wife has been a rock star with it all and she's been taking, I'd probably say, 99 percent of the sleeping load with the nighttime feedings," Slavin said. "She's been really good at everything, so I thank her for that. But it's been awesome. It's been absolutely awesome."
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