The Calgary Flames have had a fine summer. It's been a long time since the org made so many solid, potentially organization altering acquisitions in such a short span. The only roughly equivalent period I can recall is when pre-madness Darryl Sutter grabbed Miikka Kiprusoff, Daymond Langkow and Kristian Huselius in rough succession. Of course, those additions were spread over a couple of years rather than just a few days (thanks in part to the lock-out).
The Flames still need to improve, but the rebuild likely took a big jump forward with the acquisitions of Dougie Hamilton and Michael Frolik.