After seeing on Twitter 5 minutes ago that we are in talks with the Bulls centered on the #3 pick for an unnamed player (Butler) I couldn't help but think that this would be the first domino to fall in what I think Ainge's master plan is:
Based on who he's shown interest in before:
IT
Butler
Durant
Love
Whiteside
The trade for butler comes first, and then after the Cavs lose again we offer a package of a future Nets pick (2018) and some young guys for Love. We then sign Whiteside outright, whose defensive skills will compliment Love's offense perfectly. Seeing the foundation in place, Ainge goes hard after Durant. If Durant signs this has to be one of the favorites for a title, but even if he doesn't we should still be the 1 or 2 seed with Crowder at the 3 (and a 2017 draft LOADED with top small forwards).
Edit: According to a few people below it turns out this wouldn't work cap wise (my bad) so feel free to come up with an alternative to this plan!