Jamie Carragher has heavily criticised Everton's defence following the side's humiliating 5-0 defeat against Tottenham on Monday.
The Toffees booked their place in the quarter-finals of the FA Cup last week by seeing off Boreham Wood, but their league form under new manager Frank Lampard has been concerning.
Everton have now lost four of their opening five top-flight matches since the former Chelsea midfielder took over, and they were torn apart by Spurs.
They fell behind inside 14 minutes as Michael Keane put the ball into his own net, and the game was effectively over by half time when Heung-min Son and Harry Kane extended Tottenham's lead.