It just sometimes seems like he'd try and refine his ideas forever rather than accept any flaws in them.
For example he has said that his idea of winning the ball back as quickly as possible and creating as many opportunities as possible will NEVER change. Well what if maintaining a solid defensive line for a bit longer and winning the ball back later would be safer than attempting to win it back so quickly and failing, leaving spaces behind because players are not in position after closing down so quickly. I just want him to be a bit more open and flexible to different ideas and not just his one script with small tweaks.