@TapMachine made a thread about how Maia had focused on his ability to take guys down in MMA so he could use his bjj, and that's why he's had success.
Kron should take a good long look at Maia (and Jacare) and focus on chain wrestling and alternative ways to get fights to the ground. World class level bjj is only valuable if you A) Have legit TD's or B) have good striking. Kron isn't gonna make his striking any more than average at best, so he should focus on TD's.
That said, he probably subs Caceras in rd 1. Alex has given up his back way too easily and often in his career to think he avoids it here.