I don't know who you're watching thinking it's K'andre Miller, but just so you know, he wears #79 out there.
Big #79 can be seen using his sublime skating, wingspan, and incredible play reading to break up plays in the neutral zone routinely. Making it look easy. His defending the rush is probably closer to all world than it is a fault or defect in his game.
This last playoff run he also added effortlessly stripping some of the best players in the world in defending corners, breaking pucks out, grinding, playing mean to his game. He had games of pure and utter domination. I remember at least 2 games where I felt like he was the best player on the ice for either team. Other teams fans said the same thing by the way. Go read the Tampa GDT's where theyre absolutely drooling over him.
What he needs to add to his game to perfect it(like all young guys), is more consistency. He dominates, and then he doesn't, and then he dominates again. It will come with time.