Papa Shango
Player Valuation: £70m
He didn't take them down, McClaren did. Hell, he nearly rescued them against all odds with some of the best form in the league.
He then took them up and kept them mid-table, revitalising the squad and they haven't gone down since, with many of their best players still being Benitez signings.
That's not better than Moyes "nearly" getting into the Champions League. He was brought in to keep them up, he failed.
And then he went to China like the other finished footballers.
I would understand the argument if this was Rodgers (recent achievements) or Klopp (ugh but obviously), but Benitez has been a shadow of himself for over a decade. We may as well go for Dalglish than Benitez.
(I know you are not saying go for him, but some genuinely are, it's madness, he would be utterly doomed from the get go.)