Khabib needs to integrate his skills better. He basically is either moving forward brute style, going for the takedown brutishly, or else starts boxing with moderate competence. So far, he has done mostly the former with great success since he is a superb pressure grappler, until last fight he suddenly started boxing for a few rounds. He still doesn't have the GSP, TJ, or Demetrius ability to shuttle from one skill to the other and, use his striking to set things up.
It is good to see he actually has some useful boxing skills. If he can't integrate these skills, moving forward that bluntly can get him clobbered going in, like Cain vs. JDS 1 or Kongo, or Guida vs many, or Khabib himself vs. MJ. He needs to use his boxing and movement better as he sets up the closing of the distance.