Also, don't need to spend all the cap in the summer if things don't work out. There's value in selling cap space throughout the season, as teams look to duck the tax. Easy way to, at a minimum, coax second rounders from teams (if not first rounders).
I mean, a top-20 protected first rounder for taking on Meyers Leonard at the deadline, let's say, is a pretty good offer for the Knicks (given we might be inclined to keep him since he's a potential rotation player and that it wouldn't really cost us anything). Same thing with a host of players. Charlotte may give us a lottery protected 1st to take Bizmack, but they won't necessarily do that until they see where their team is.
This is Plan C, just to be clear, with Plan A being Durant and someone and Plan B being players of the D-Lo/Randle/Brogdon mold.