Patience is the game at this point.
Get (yet another) 1st rounder for Green and see if we can dump Wallace. Between Bass and Wright, get another incremental asset like a trade exception or a pick swap option or whatever.
7 extra 1st rounders, multiple trade exceptions, and $40M in cap room with some useful players like Smart, Young, Sullinger, Olynyk, Zeller is about as flexible as a franchise can possibly get, and it's at least a point where you can start pitching trade partners and star players with "look, we have more money, picks and young players combined than anyone else".