I don't think people understand how badly Dante Exum played last season. He was one of 12 players last year with 500+ minutes who posted negative VORP, BPM, and WS/48 last season. The players who have done that twice in the last five seasons are trash like Michael Beasley, Ronnie Price, and Ish Smith. Other hot garbage who have done that once include Jonny Flynn, both Pargo brothers, Anthony Bennett, and Austin Rivers. The best players to have had a season that bad in recent years are probably Ben Gordon and Lance Stephenson.
Maybe he will prove me wrong, but I think trading for Exum should only be done if you are giving up value that treats him as the equivalent of Austin Rivers. And what kind of idiot wants to trade for the next Austin Rivers?