Wanted to reply this old post as I think it has some key points for which I have my own opinion.
I have followed Lauri's games on Arizona and also on Bulls. He came to both to Arizona and Bulls marketed as a 7 footer pick and pop-shooter as that was probably the thing he feeled comfortable playing style for him for his first years as a long but skinny yong guy who has experience from the Europe style game (That Niko also liked when turning down the Utah deal).
And while Lauri was getting points also from the paint, I agree that he also missed a lot of points during his first year from paint because he was often in bad position, got injured and avoided contacts. In paint he was often hesitating and doing misshots as he basically had only a tools. Direct dunk (which often went to rim) or drag'n layup where he avoided contact to defensive players.
He was also a good 3 point shooter but not a miracle maker. One reason for that was propably the 2 year old overstretch injury, second one was propably that he was getting clearly much more muscles to hands and that can lower doing temporarily the hand accuracy.
But now in his 4th year in Bulls the Lauri's post moves for scoring have started actually to look pretty good. In many games he has only had a 2-3 ball possessions on paint but he has looked there much calmer and done good looking points with many different ways without hesitation that was shown up on last years. And I think he has now also enough weigth and muscles for that.
That does not say that he should develope himself as a 250-300 tank type player like Zion, Lebron, Theis or Vuc, instead he should aim to something like a Durant, Robinson type of player as that is more to his body type. (Longer version of Thompson type of shooter)
I think he has now enought muscles so body lifting that would make him slower should be avoided.
(little bit more weight and muscles will come naturally as he gets close to his prime years). Instead I would like to see him doing more like a player how does about 10-15 attempts close to paint with floaters, drives, dunks and 6 feet jump shots and then maybe about 5 3 pointers from pick and rolls.
He should now concentrate more on training time for speed and learning how to position himself on paint to get passes and rebounds more easily. (practices with some skilled just retired paint player veteran would be usefull).
He should also look concentrate for ball dripling exercises (with couple of balls) even thought the Ball handling from 7"1 player wont newer look as smooth as from 6.5 players. (ball needs to travel longer distance between hand and floor...)
Of course needs to maintain and put efforts also to 3 point shots even thought this years was his best on those with little over 40%.