It's very easy to disagree.
Look at the squad we had when he come in and compare it to now.
"He's overseen a catastrophe"
He come in during a catastrophe - Everton, managed by Sam Allardyce with this team. Always needed time to clear out this mess. He had to remove a 1/4 of the squad - wait until contracts finished for the likes of Schneiderlin, Garbutt, Stekelenburg ,Sandro Ramirez, Yannick Bolasie, Cenk Tosun, Theo Walcott, Oumar Niasse, Cuco Martina, Muhamed Besic, Shani Tarashaj . This team was a starting 11 in the Prem a couple of months before Brands come in;
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It's coming up to crunch time when we have to start seeing an improvement competitively on the pitch though, our league positions have gone backwards since he's come in - but let's not make out that Brands is the reason we've struggled. Walsh and Koeman crippled this club.
Most of FFP burden is from before Brands.