Another option to try to fit Walker is to trade Colton and bring in Ritchie at 3C. Would suck to trade a guy you just sign a year ago but there is a cap.
A little early to go there considering the sample size but by the end of the playoffs trading George might be an option as well to gain cap space and go with Annunen and Provy next year. Obviously risky but IMO the Avs have the defensive game to handle that.
There is a lot of different ways they can go. I'd say the playoffs will be a heavy factor in who they keep. It's not quite as bleak as some make it out to be cap wise, but choices will be forced, and they need to load up on assets for the TDL moves.
I think the most important pieces are there, and will be year over year.