Here's one scenario:
Boston sends Rondo, Bogans, and one or more picks to Cleveland for Irving. Cleveland then sends picks, Bogans, Lucas, Thomas, Murphy (all nonguaranteed) Wiggins, Bennett, etc. to MN and takes back Love, Dieng (to back up Varejao) and at least one of MN's unwanted contracts (e.g. KMart). Cleveland has Rondo, LeBron, Love, Varejao and KMart for a title run, plus any other players they didn't have to send out as fodder to make the salaries match. The trade checkers do not yet reflect Irving's new max deal, but I bet the pieces could be made to fit under the traded player rules.
Or maybe Boston throws in Faverani if Cleveland would prefer his expiring deal to Dieng's longer deal.