Toews, who scored 28 points (six goals, 22 assists) in 68 games last season, is expected to replace Zadorov and join defensemen Makar, who won the Calder Trophy as the NHL rookie of the year last season, Samuel Girard, Ryan Graves, Erik Johnson and Ian Cole.
However, top prospects Conor Timmins and Bowen Byram are also in the mix.
Timmins, who was selected in the second round (No. 32) of the 2017 NHL Draft, scored 27 points (three goals, 24 assists) in 40 games with Colorado of the American Hockey League, and also played two playoff games for the Avalanche against the Stars. Byram, the No. 4 pick in the 2019 NHL Draft, scored 52 points (14 goals, 38 assists) in 50 games with Vancouver of the Western Hockey League.
"We're always looking to improve. That's never going to stop," Sakic said. "We felt that we'd try and add there as well for depth purposes. We've seen enough of Conor, we know he's ready to maybe take the next step. Byram, we're going to give every opportunity. But also knowing we don't want to put a lot of pressure on them, either. We want them to come in slowly and at their own pace."
One of the reasons the Avalanche can be patient with their top prospects is the depth on their roster.
That depth was evident during free agency, when Colorado avoided making a big splash and instead focused on re-signing its key restricted free agents, including Burakovsky, Graves and forward Valeri Nichushkin.
Last season, Burakovsky set NHL career highs in goals (20) and assists (25), and Nichushkin scored 13 goals after he scored none in 57 games with Dallas in 2018-19. Graves, who was playing his first full NHL season, led the League with a plus-40 rating.
"You have to have depth to win. We've addressed that," Sakic said. "… We're trying to put together as deep a team as possible to try and make a run this year."