Sounds like I am way more bullish on an Exum + Donovan backcourt than several folks. If Dante can stay on the court (big if), they're a great pair in the era of positionless basketball. They can both serve as primary ballhandlers, both play off the ball well, and they'll be interchangeable defensively.
Don't like the idea of trading for Kemba, at all. I still think the FO is looking to build a team that is long and athletic defensively (centered around Rudy), and Dante and Donovan fit that mold. I'd rather us invest in a top flight, stretch-4 big or a long athletic wing than an undersized PG.