New Jersey Devils forward Taylor Hall, the Hart Trophy winner last season as NHL MVP, said he expects the Maple Leafs to be especially strong at Scotiabank Arena, where they will have the last change.
"There's going to be some mismatches for sure," Hall said. "You'll probably see them have a very good home record with Babcock being able to match up and really have the players he wants out there.
"[Tavares] went there because they're a strong team, they have a bright future. I think everyone sees that."
Couture had hoped Tavares would sign with the Sharks, who made a strong pitch to land the former New York Islanders captain in free agency.
"There are a lot of good centermen but to find those three on the same team, that's impressive," Couture said.
Kadri pointed to the strength the past three Stanley Cup champions have had at center as a source of encouragement. The Pittsburgh Penguins were led by Sidney Crosby and Evgeni Malkin up the middle in 2016 and '17. The Washington Capitals had Evgeny Kuznetsov, Nicklas Backstrom and Lars Eller at center last season.
Tavares (84 points; 37 goals, 47 assists), Matthews (63 points; 34 goals, 29 assists) and Kadri (55 points; 32 goals, 23 assists) combined for 202 points last season, another cause for optimism.
Kadri, 27, said he has no issues playing behind Tavares, 27, and Matthews, 20, though his ice time could get cut.
"Winning is the most important thing to me," Kadri said. "I don't care where I play, I don't care what role I play."