Let's talk about Rafa's record.
- Valencia - Won La Liga twice, a rare feat for a non Classico team - had to be 10/10
- Liverpool - did really well but a club that had seen better days.This was a good as it got for many of us as adult LFC fans 9/10 because of Istanbul, and Athens.
- INTER - what was he thinking, taking that job. NO chance of it working out well: Reports of Mourinho being an ass behind the scenes stirring the players 3/10
- Chelsea - Did a good job. And won the Europa League, got them into Europe. 7/10
- Napoli - Nothing really to write home about - again middle the road - 6/10
- Madrid - Too early to judge, but probably a 6/10 made into 7/10 by his CL performances.
So overall, Benitez is a manager who started exceptionally well , and has settled into above average. He's no Ancelotti, Klopp,or Mourinho, but he does reasonably well where expectations are not silly. He's in the same league as LVG. Overall as a manager, he's got 42/60 on my ratings.
Valencia - You're being harsh - I'd even give him 15/10. What he did there was fantastic, not to mention the UEFA cup he won before coming to us.
Liverpool - I cannot give him a 9/10 because of Istanbul. Athens - I still to this day have no idea why Peter Crouch didn't play that game - esp when AC Milan where shitting themselves. To me, he got an excellent team, made it even better and really should have won the league. We had a good enough team, and his decisions (letting Keane go midseason, some odd line ups against relegation fodder) were key unfortunately in us missing out on #19. - 7/10
Inter - 2/10. Terrible mistake to go there as you say, but to be let go after a few months? Never had the dressing room and Inter has never really recovered since. His fault? No chance, Mourinho does what he normally does and the players were worn and Inter are still rebuilding.
Chelsea - 8/10. Did he do anything wrong? Could even be 10/10 in theory as he was only give half a year and bar not winning the league (I don't remember if they had an opportunity or not when he was brought on), he did everything else ok.
Napoli - We differ here. He took a top 3 already with an owner who let him spend lavishly - Higuain, Mertens, Albiol etc. And he left the team in the Europa League. He took the team backwards - that's not 6/10, more like 4/10.
Real - He was bound to fail here. His win % was poor for Real standards, and his Champions League performances was expected (PSg and two nobodys ... The 0-0 against PSG with an injury depleted team was Rafa at his best, reminded me of our 0-0 vs Juve). No rating from me - it was his dream job but he had ZERO CHANCE of succeeding here unfortunately. They'd have fired him regardless.
He's still one of the best cup managers in the business, but I question whether he can win the league considering his failings since he left Valencia. He'd be ideal for PSG if I'm honest! They want to win Europe, have $$$ and he won't be challenged in the league.