Why is that insane? Roberson is 3 years younger than Turner and has not yet reached his peak. He was just named 2nd team all defense and was a full time starter on a 47-win team. Turner was a bench player on a 41-win team.
He's not a great shooter, but neither is Turner. Roberson's TS% is actually higher (.510 vs. 491). The only reason Turner scores more is because he has a MUCH higher USG% (18.5 vs. 10.1). Unfortunately, Turner uses up way too many possessions (with turnovers and missed shots) for the offense he generates.
The big difference is in the advanced stats, where Roberson absolutely kills Turner.
Offensive Rating:
Roberson = 108
Turner = 100
Defensive Rating:
Roberson = 106
Turner = 111
Net Rating:
Roberson = +2
Turner = -11
Offensive Win Shares:
Roberson = 1.1
Turner = 0.0
Defensive Wins Shares:
Roberson = 3.1
Turner = 1.2
Total Wins Shares:
Roberson = 4.2
Turner = 1.2
Win Shares per 48:
Roberson = .085
Turner = .035
Offensive Box +/-
Roberson = -2.1
Turner = -2.5
Defensive Box +/-
Roberson = 2.1
Turner = -0.1
Box +/-
Roberson = 0.0
Turner = -2.6
Value over Replacement Player:
Roberson = 1.2
Turner = -0.3
Both are below average offensively. Roberson is an elite defender. Turner is an average defender. Roberson is an above average player overall, because he is one of the top 4 defensive wings in the league. Turner is a below average player overall because he does nothing at an elite level and several things below average (shooting, turnovers, etc.). Roberson is three years younger and apparently, will be making about $3 million a year less than Turner - and you called that insane.
So yes, Evan Turner is overpaid. So is Allen Crabbe and so is Meyer Leonard. Sure, after last summer's spending spree, you can point out a couple specific examples (Chandler Parsons and Timofey Mosgov) of players who are even more overpaid, but that doesn't change the fact that, based on their production, Turner, Crabbe and Leonard are all overpaid.
BNM