Well, that's a 2 way street, right?
Who knows if the people they really wanted would be available if they took their sweet time to make up their mind.
I think they identified a problem (opposing guard defense), they identified potential solutions and when the opportunity presented itself, they executed. It's as simple as that, because maybe they wait, GP2 takes the 2 years deal (instead of 3) to return to the warriors, some of these guys decide they do not want to come to Portland - and Portland is left with sloppy seconds.
As long as this was their real plan, I have no issues with it. Like everything else, it either works or not, but if there is one thing we have seen from this new GM - he has a vision and he is willing to execute it. The same, btw, was true for NeO, the only difference is that NeO was married to his vision 5 years too long. We do not know if this is the case with the new management, yet.