I don't agree with this. I don't think his style of play has evolved much at all. He is a balls to wall, all out defensive coach. If you don't give that level of effort on defense, you don't see the floor. He prioritizes this over offense, clearly. And it'll win you a lot of games.
But the team still runs this goofy motion offense that usually wastes the first 15 seconds of the shot clock just aimlessly passing the ball around the perimeter with no plan or intent to attack the basket or put pressure on the defense. They did it with Grant, they did it with DK, they did it with Kevin Punter Jr., and they are doing it now. If they are hitting perimeter shots, it looks great. But therein lies the rub: You aren't going to consistently hit perimeter shots away from home against good teams in March, especially playing that hard on defense, so you need a backup plan like drawing fouls, feeding the post, etc. DK was that backup plan last year, but you rarely have an offensive player that talented who can play 1 on 5 and get you a tough basket like that.
Of course that is all my opinion, but I have traveled to see this team play a lot of basketball over the last 10 years and it is often very frustrating given the talent this guy recruits. I wish it wasn't that way, because Rick is an absolute class act and a great dude by all accounts. I so want to see him get to the top. I just don't have much faith.