I coach high school basketball, and I'm in favor of the new rules honestly even with them being frustrating for players still used to the old rules (we still have the 5 second closely guarded rule which I have never liked). I'm a little biased because I prefer offense, but the rules are certainly making it tougher to play defense. That puts an emphasis on playing good team defense though IMO. The game had become way too physical which never should have happened. Defenses & bigger/stronger players were given a clear advantage because they could just body someone off of their cut or drive and disrupt any offense. Offensively you could just overpower a defender on your way to the hoop. Now, I feel like the emphasis is on skill development, especially on offense, to where you can't just be bigger/stronger and push people around to be successful. Defensively you are forced to move your feet and maintain good discipline with your hands. Furthermore, everyone on your team has to be locked into what is going on defensively or there will be continuous breakdowns that can't be covered up by size and speed. Offensively, it makes teams have to focus on execution, efficiency, and shot making. I will admit I was opposed to the 30 second shot clock at first because I thought it would lead to more 1 on 1 basketball, way more pick and rolls, and more standing around on offense when you don't have the ball (which has happened to an extent from what I have seen). When I stop to think about why those things happen now, it's because players aren't properly taught basic skills - shooting, passing, cutting, screening, dribbling - or how to execute at the lower levels. Youth coaches are too busy teaching press defenses and trapping rather than the skills necessary for each player to be successful at higher levels. The shorter shot clock places heavy emphasis on efficiency which is accomplished through ball movement (passing, dribbling), player movement (cutting, screening), and shot making (shooting - the most under taught skill of all). I think it's a great change to the college game and hope all high schools follow suit soon so more coaches will be forced to take more time to teach players how to efficiently play the game. The one rule I would like to see changed is the charge/block rule. I'm in favor of removing it altogether but also understand how much of an advantage removing that rule gives the offense because you could just run someone over and get a foul. Either way, the wider arc is a good thing because it removes a lot of judgement by officials and again forces teams to be disciplined defensively with their schemes (can't be late on help defense).