@Balthazar, you asked in the trade frenzy thread about capspace relating to the Lehkonen and Cogliano trades. Those two added $1.15m and $1m against the cap, a combined $2.15m. Avs had $3m in deadline capspace to play with so they left $850k unused. They could of course have acquired another player to use up all of that (eg. a 3rd goalie), but they didn't have any more roster spots, unless they would have put someone on IR for at least a day.
Having a bit of capspace left probably isn't a bad thing either as it'll help cover bonuses to avoid overages next year. This year they had ~$1.7m less capspace because of overages so it does matter.
The extra $850k also gives them the option of calling up Maltsev ($809k caphit) to give him some games down the stretch even when they have a fully healthy roster, without needing to send anyone down or out anyone on LTIR.