I like where you guys are going with the OKC trade but... after thinking about it maybe the best option IS to amnesty Bargnani-- hear me out. Unless they can find a quality piece, if they amnesty Bargnani they can take 11+ mill off the cap and pay off Kleiza. Financially this would create cap freedom a year earlier. In real finances it's a mess, BUT instead of having to wait 2 years to seriously build the team they can start the process a year earlier.
Trading Bargnani is only a reasonable option if the team improves with a trade. If not, they might as well create roster space, use minimum one year contracts to fill the bench and take advantage of a deep upcoming draft. If a new GM comes, who wants a title, this might be the only correct long term option.