Over the years that Bryan Murray has been the GM of the Ottawa Senators he's received a lot of criticism, but he also deserves some praise in certain areas. While a few trades and signings were regrettable, he has been very good at locking up talent for very cheap. There are exceptions to this as I will point out, but this summer shows that he is good at keeping his assets for pennies on the dollar.
There are a few examples of players that already had contracts before this summer, and I would label Erik Karlsson, Kyle Turris, Craig Anderson, and Patrick Wiercioch as "steals.