Again, I liked Leddy and if there was a way to keep him I'd want to, but I don't think it would have happened on the 'hawks. They were too invested in Hammer, Keith, and Seabs (Two of which he had zero chemistry with), so they moved him for assets. IMHO it was a matter of this past summer vs. this coming summer.
In the case of how putrid Rosival and Versteeg were (i.e. worse than Bollig) in the playoffs, I don't think "Garbage picks" were ever in the discussion since they weren't even worth that (speculation of course), Chances are every offer for either meant taking salary on that the 'hawks couldn't afford. Luckily for us, Versteeg has been awesome until he Matt Walker'ed his hand. Rosival? meh.
Between Crawford and Bickell, though, I think Bickell is more movable. On the surface there are 29 other slots in the league for Crawford, while for Bickell it's between 48 and 174, depending on whther you categorize him as a bottom-6 LW, or a bottom-9, with the possibility he or someone on the receiving team shifts to RW. Odds are greater that someone needing him, able to take on his salary and not give back any salary, and passes the NTC test, can do so over Crawford.
As for "the team making the goalie", that's horse-shit. It's all goes hand-in-hand and it's a team sport. The only time a good goalie wouldn't matter is if the skaters are an order of magnitude better than the opponent.
As much as we all love the 'hawks, let's be realistic: Our skaters are not an order of magnitude better than anyone/everyone with any consistancy, and I don't see (along with all the other ditchings) Crawford being ditched and as a result the piece his cap hit acquires--or the collection of pieces, that makes the resulting team that order of magintude better on a consistant basis.