It's a conservative number. 24M in cap space, 11M or so to re-sign Larsson, Yamamoto, Khaira and to pay a few depth players to get up to a 23 man roster. I don't think that math is off.
If they have considerably more that's great. The point is 12-13M is actually a lot of money right now. Dollar for dollar, much more than it would have it been 2 years ago.
I had $11.5M available with RNH and Barrie signed for $11M combined and Larsson and Yamamoto at $6.5M combined but without Klefbom. With Klefbom back, that's $7.5M available with top 6 winger and goalie as the obvious holes. If both RNH and Barrie walk, that's roughly $18M+ to fill the remaining holes.