I'm not really worried about Exum.... He has shown over the past few games that he has:
- Elite speed for his size and the NBA
- Elite court vision and higher than average basketball IQ
- Better than advertised defense for his age
- Good kid that will work hard to improve
- Not as bad as advertised 3pt shooting (which he can improve on, imagine Spurs not picking Kawhi Leonard because he can't shoot the 3 ball).
I think he'll be an above average NBA player when it is all said and done. Whether or not he's an All Stars is another story all together though.