If Edson shucks off Khabib's takedowns, it won't matter much, Khabib will go for them again and Edson will get tired and even if he doesn't and defends all the takedowns, he'll lose. Khabib isn't someone who gets inside his own head about a failed takedown, he is a dog, he will go and go and go until it works. Barboza needs to convince Khabib not to stick to him like glue, nail him with hard shots as he comes in, bang him up in the clinch, angle off and land bombs on him. It's not an easy thing to do because it's never been done, but it's not as easy as just stopping Khabib's takedowns, Dos Anjos stopped plenty of takedowns, it doesn't matter, Khabib will shoot 40, but if only 3 of them hit then he is worlds ahead of everyone else at his weight class.