Clifton's unorthodox mix of skating, assertiveness, physicality, and, well, just about everything - Cassidy actually thought Clifton was a winger the first time he watched him play at the 2017 rookie tournament in Buffalo - quickly elevated his stock within the organization.
"Connor did a really good job, and he deserved to play - all the situations he did," said Bruins general manager Don Sweeney. "He took advantage of it, provided a lot of depth for our club. Obviously, we missed Kevan Miller. I think moving forward, we just recognized that there's a lot of value in what Connor brings to the table. You can slot him in. He was out of the lineup, and he'd go back in and play the exact same way. There's a lot of value there."
With Miller (knee) and John Moore (shoulder) likely to begin the 2019-20 season out of the lineup, and questions surrounding the contracts of restricted free agents Charlie McAvoy and Brandon Carlo, there could be plenty of opportunity on Boston's right side come September. Nevertheless, Clifton knows he must shore up some parts of his game if he wants to keep a spot on the roster heading into his second NHL season.
"I don't think a couple compliments make you want to stop being the player you are," said Clifton, who scored his first NHL goal during Game 2 of the Eastern Conference Final against Carolina. "I still want to make every aspect of my game better…. I think just a little bit of everything. The play after that, I guess, is come to camp and make the team. Obviously we've got - I don't even know how many defensemen, great defensemen who can play in the NHL. I think I have to take that upon myself and be ready for September and try to make the Boston Bruins."
He will have to make that time count during what will be an abbreviated summer following the Bruins' run to the Stanley Cup Final. The blue liner, who said his body is feeling good following the that two-month grind, took the last three weeks to unwind and reflect on his rookie year, but has been back in the gym over the last few days.
"It's a shortened summer, so obviously I have to deal with that, which is pretty new to me," said Clifton. "Each day, each week, matters more so than when you have a four, four and half month summer, but I think we have a lot of resources and ways to attack the summer even though it's a little shorter."
Ultimately, no matter the limitations, Clifton will have plenty of motivation to come back stronger in Year 2.
"The experience I feel like I got from playing in the NHL alone, never mind the whole playoff push we had," said Clifton. "When you look back on it, it was an incredible journey. Obviously, got that taste in our mouth, making it to Game 7 and not coming up with the Stanley Cup. You can put that in your pocket and save it for this coming season."