Time and time again we see Kickboxers and boxers refuse to commit to learning BJJ and wrestling, and time and time again we see BJJ practioners and Judokas refuse to commit to learning how to strike with technique.
Demian Maia - A world beater in BJJ, yet shows very little improvement in his striking.
Roger Gracie - Another world beater, with 1% striking (a jab) and that's it.
Vinny - BJJ master again, improving his striking but makes a lot of mistakes.
Werdum - HW but still BJJ master, didn't improve his striking for a long time, but since his 2nd debut in the UFC he's showed a great improvement.
Palhares - Leg Lock specialist, terrible standup, nothing more to say.
Aoki - Submission magician, recently imroving his standup.
Kitaoka - A lesser version of Aoki, with 0% standup.
Jacare - BJJ monster like the others, yet each and every fight his striking looks better and better. Yes i know that this guy trains with Anderson but still that doesn't mean he was bound to end up improving, he has commited to learning striking to not only compliment his BJJ BUT he's trying to win fights with strikes.
Personally i feel sorry for whoever he gets matched up with, i just hope we get to see Jacare vs Weidman, Jacare vs Mousasi 2, Jacare vs Rockhold 2.