If Manson isn't traded, no way they can pay him. I do think it's realistic to pay Sam2 a little more to run the third pair if you also find Girard a steady partner, or Towes depending on who is with Makar.
I don't think they'll bet on Manson if he looks even remotely pedestrian in the playoffs.
I can see a world where all three of Colton, Wood, and Manson are moved. Wood would be the only difficult one, and not that difficult.
It would be a huge shift in how CMac operates for him to trade multiple guys under contract with term.
For reference below are the notable players the Avs front office have traded out in the last 6 years.
2024
Kovalenko - RFA at seasons end
Georgiev - UFA at seasons end
Ben Meyers - RFA at seasons end
Byram - less than 1.5 years to RFA, had apparently requested a trade
Johansen - less than 1.5 years to UFA, buyout candidate
2023
Newhook - RFA
2022
Jost - less than 1.5 years to RFA, had apparently requested a trade
2021
Ryan Graves - 2 years remaining, forced trade by Expansion Draft.
2020
Zadorov - RFA at seasons end
2019
Barrie - 1 year to UFA
Kerfoot - RFA
Notice that there isn't a single player other than Graves who was traded with more than 1.5 years on their contracts (and in his case it was a forced trade due to the expansion draft).
Clearly CMac likes to honour contracts as much as possible, so it seems pretty unrealistic to expect him to move multiple guys who he signed long-term deals with. At most he'd move one guy if he's really forced to, along with Malinski who is an RFA, but Wood, Colton, AND Manson,.. nah I don't see it.