Trading Snieds would give them $8 million (compared to $9.3 with lou) to play with, that would be enough to be able to make another move without being bent over a barrel.
Also you can go 10% over the cap in the offseason
Sedin, Sedin, Booth, Burrows, Kesler gives them 5/top 6. Bottom 6 players can be had fairly cheaply and I presume they ahve some prospect who is about reading to fill in