With a double put him on Chase and position him a little off so he can read the QB. Williams' strength is his anticipation, at least when he's not thinking. We know Burrow is gonna put the ball on Chase so having a ballhawk like Williams is the way to go he just needs help so he can play underneath with confidence.
Ramsey meanwhile as great as he is the guy has bad hands. He's never been an INT guy. Never had great ball awareness. And that's fine, because he's an eraser. Plus he's also got great size and physicality so Higgins is the guy you want him on.
IF they put Ramsey on Chase alone he's gonna get beat.