If you are familiar enough with the sport, its easy to see mistakes fighters make from the outside. What you dont realize is that they could be totally aware of such deficiency and still not be able to change it. In fact the majority of competitors are kind of stuck with what they have skill wise. Stop saying Barboza needs to improve his hands, do you honestly think after his multiple year career he doesn't know this? His style and strengths are set in stone. He isnt some 20 year old dude who is going to change his game drastically. Kind of like AJ, he will never change the fact that he fades after the first round. Brian Ortega will never beat Max on the feet. It is what it is. Maia just sucks at striking and its never gonna change.