If we’re of the belief that the Avs injuries won’t be much better this year, I don’t think the cap will be a problem for a deadline acquisition. Manson and Nuke will be on LTIR with bad ankles and they’ll be “questionable” to make a return around game 1 of the playoffs. Teams get creative at the deadline, even if it costs you a little more in assets.
It won't be an issue anyways, at least it shouldn't be. You can make a $6M player cost just $1.5M at the trade deadline with double retention.
Send MacDermid the other way in a deal and you're good to go.
Even if we don't have any injuries by the deadline, cap space should absolutely never be an excuse to not get anything done to improve the team. It just means having to get a little more creative to find solutions.