In fairness to Mir he is quite good on his feet with his hands, AND he is a southpaw, longer reach, good power, not slow, Cormier wont be ready for that.
If Cormier takes him down, he has a dangerous guard.
He does have a weak chin.
But cormier has weak hands and may not ever punch as hard as he did against Bigfoot ever again, but still hard enough to put mir down.
He couldnt put the baby faced assassin away and he is known for poor stand up again due to post bigfoot glass hands.
It really could go either way either way on the feet, either way on the ground.
Cormier hits like a truck and has very good and quick hands. Also, Barnett is a top 10HW and has only been stopped once, so there's no shame in not putting him away. And since when do people suddenly lose their KO power?