I don't really believe the Flames will trade Gaudreau any time soon, but I wouldn't want to give up the assets needed anyway. It would surely cost Byram and the Avs need Byram more than they need Gaudreau.
The Avs need to do everything they can to keep Makar, Girard, Byram, and Timmins. That top 4 will keep them competitive for a decade, and it's not like there's evidence the Avs can easily replace them. It's taken them over a decade to get that kind of top 4.
They likely won't have another top 10 pick for a little while, if the team plays to its potential. There won't be any more Makar's and Byram's coming from the draft unless they get lucky, and they don't have any more Duchene's and ROR's to trade for high end defenseman.