People do miss them though. My favorite example is the derby win. People went crazy over him but the biggest chance we conceded he was massively out of position for. But no one seemed to really care (it got saved tbf) and I genuinely think it was because he was so far out of the way that you've got to really look hard at it to see what he's done.
There are others, he basically lost a player to concede a shot in every game he started at CB, but that's the one that sticks. He also lost Mane twice that day.
As for Keane on Monday I'm willing to give him, and the other CBs, a pass for playing poorly in a system they don't know how to play. I'm more interested in our work as a back four.