I'm hot spotting net from my mobile phone just to write this comment

About TS percentage and scoring efficiency, you can separate low TS players in two major categories:
1) players who's TS is low because they draw very few FTA OR didn't shoot 3s ( or had low 3FGA )
2) players who's TS is low despite drawing lot of fouls
1) Vuc, Fultz, Boozer,Larry Bird ( best example)
Vuc TS was garbage because he both : didn't draw many fouls and didn't shoot 3s.
Fultz thing was talked about too many times to repeat again.
Boozer was mid range shooter on high volume, and rather mediocre FTA ( kind a like Vuc)
Bird played in era where 3 point shots weren't that important, later in his career his TS% got much better, but guy's TS didn't pass 58% Until he was 28. By that point he was two time nba champion, two times finals MVP and two times regular season MVP.
2) This list is is filled with infamous names like Melo, DeRozan, Tracy, Westbrook, Iverson etc.
Those players, at least ones named were REALLY talented basketball players, but some stuff they did in their game held them down.
Derozan shot long 2s despite fact only one step would lead him to 3 point line. Why he struggled so much with 3 point shot? I have no clue.
Tracy, Iverson, versions of Kobe just took most idiotic shots possible. Their decision making reflected that era. Selfish iso ball.
Westbrook just had no talent as shooter, it's crazy that this is his most efficient shooter. If only he figured with Durant how to play off ball, his career would look so much different.
Paolo's problem is complete lack of desire to be part of offense off ball. Kind a like Westbrook, whenever he is on side of the ball, he just sets himself to post up , once he is on other side of a ball, he is "spotting up" but isn't ingaged into anything that happends.
I really want to see him play as rolling big in pick&roll where he can attack missmatch, shoot off curl or cut/pass. But that requires PGs. One we don't have.
Maybe he simply doesn't like to play in such fashion, who knows.
But in general you probably won't be very efficient nba player if 50% of all your shots are mid range shots and you are 39% mid range shooter. WIthin some margins, 39% mid range shooter is upper level scorer.
However, it's sub 0,800 PPP.
And simple math will tell you that shooting 50 mid range shots on 39% accuracy 19,5 shots made = 39 points.
Shooting 50 three point shots on 0,30% accuracy = 15 threes made = 45 points
Basically, having random bum shooting 7% below average for 3 on same volume is more valuable than player making above average clip of mid range shots, because level of difficulty is near same, and reward is 1 point less, over 30-40-50 possessions a game, it stacks against you.
I don't want to trade Paolo, i don't think Melo is garbage , i don't think Tracy is garbage ( despite fact i often tell how overrated he is ) . But most of high volume , low efficiency players who are as talented i mentioned
probaly can fix whole lot of their problems by just little tweaks. But yea... most don't because players are egomaniacs who don't like to be told what's wrong with them.
Life is what happens when you're busy making other plans. -John Lennon