David Unsworth was reeling after a torrent of insults from radio pundit Joey Barton and a dismal defeat which left Everton in the drop zone.
Caretaker boss Unsworth was branded a “glorified PE teacher who shouldn't be in charge of a men's team” in Barton's character assassination on talkSPORT.
And as Claude Puel launched his Leicester reign with a comfortable win, the sickly Toffees slumped to their sixth defeat in 10 Premier League games – and Barton launched into an astonishing tirade on the airwaves.
He said of Unsworth: “I used to watch him as an Evertonian and he was the most immobile left-back I've ever seen. He's not a manager, he doesn't look like one.
“I watched him waddling on to the coach. How can you get players to exert themselves physically when you're out of shape?
“He's a glorified PE teacher who shouldn't be in charge of a men's team. Look at him on the touchline... he's more like a steward.”
Unsworth responded: “It's not a problem – anything Joey Barton says, I couldn't care less.”
The interim Everton boss, who took charge after Ronald Koeman was sacked seven days ago, admitted he was unhappy with his side's limp first-half display at the King Power, where they were sunk by Jamie Vardy and Jonjoe Kenny's own goal – ludicrously awarded by Premier League chiefs to man of the match Demarai Gray.
He said: “That wasn't the performance I was expecting – we were a bit fearful and I was disappointed with the manner of the first goal.
“Watford next Sunday is now a massive game – we need the three points – and I'm sure the Goodison faithful will get behind us.”
Unsworth, who left record £45million signing Gylfi Sigurdsson on the bench, revealed England defender Michael Keane missed the game because he had been hospitalised by a gash in his leg which became infected.
He said: “Michael got a bad gash when we played Sunderland in the League Cup in a challenge with James Vaughan. The infection spread up his leg and it was really nasty, but there has been a big improvement.”