He's got to be a specimen. He's got to have a Kobe level killer instinct. He's got to commit to being in shape at all times. And he's got to be a solid pass rusher with good passes defended numbers.
I'm just not sold that he can destroy the pocket like Suh, McCoy, or Donald can/could. And if you are in the top 10....... You need more than a super good run-stuffer (which he is).
Quinnen had 19.5 TFL and 8 sacks in 2018.
Brown has 22.5 TFL and 8.5 sacks in his last two years combined.
His floor is not high enough IMO to consider him in the top 10. He's just the only viable option up in this area so he's getting the "positional scarcity bump" IMO.