I've used this comparison before, but here we go:
Andre Roberson
6'7" SG
5 Years experience
269 career starts
Career 4.6ppg, highest season average has been 6.6ppg
48% fg, 26% 3p
4 rpg, 1 apg, -1 spg, -1 bpg
Salary averages $10 million per season
Even though they have 3 hall-of-famers and a great center, OKC really missed Roberson down the stretch. With him, they probably beat us in the first round. He is what you would call "invaluable" to their team.
Dante Exum
6'6" PG/SG
4 Years experience (3 if you count that he didn't play in 15-16)
67 career starts
Career 5.7 ppg, highest season average has been 8.1 ppg
40% fg, 31% 3p
2 rpg, 2 apg, -1 spg, -1 bpg
Salary TBD in summer 2018
At the very least, Exum could be a Roberson type player for us. Roberson has a 2 year head start and has been a starter for a while now. He knows his role. Exum hasn't had a role carved out for him yet. However, if we don't trust him to run the offense, just do with him what OKC does with Roberson - limit his touches. Mitchell is emerging as a PG/SG anyway. If Exum grows offensively, then great. Regardless, we will need perimeter defenders like him if we are going to contend in the coming years.