Boone is hopeless. He has regressed this year. He started to improve the end of last season, but now is worse.
He was around 60% over the last three months of last season. It's clearly mental. But Ghoti's right; every time he is in the game, the opposing coach should just have him fouled, over and over, until they build up such a huge lead that Frank has to take him out of the game.
In the instant case, yes and here's why, Yi has improved his stroke, improved his technique, and has the confidence to follow through. Boone admits it's mental.
from nj.com: Josh Boone worked on foul shots with Kiki Vandeweghe today. Not a mechanical problem, he said. Basically, this is the problem: When he's at the line, he can't get his brain to shut up. I've said this before: I wish I could sit down and talk to Josh. I really think he is an INTP, and he needs help understanding himself. He just overthinks, and I wouldn't be surprised if he had trouble focusing when he needs to.
As someone who has followed him for five years, I don't think it is because of Kiki at all. Yi has already had the touch to shoot from 20 feet and out. While he shot very well with his foot on the line, he just had a mental block against shooting with both of his feet outside of the arc. He just had a mental breakthrough. That is all.
If you followed Boone's career, you would know that the BIGGEST knock against him both by his college coach and NBA scouts was his mental attitude, his uncertainty, his insecurity. Jim Calhoun wrote in his autobiography that Boone's problems his last year in Storrs mostly had to do with his uncertainty about leaving for the NBA, that it ate at him, particularly during the NCAA's that year. Stefanski said that before the draft he had a tough talk with Boone about it, telling him his attitude was what was holding him back. Yi seems a much more confident player, and I assume, more confident individual than Boone. He has had to withstand a lot more pressure and is a lot more worldly than Boone, and he seems to accept it. As you grow older, you will realize that not everyone can be treated the same, that the same approach might work well with one individual, not so well or even be counter-productive with another.