The result left many traveling supporters unhappy, with fans venting their anger towards the dugout for a series of substitutions made by the Everton manager.
"Nowhere near good enough by us to crumble like we did. It's something we need to sort out quickly," he told Sky Sports after the game.
"They went two up front and made it difficult, but that's no excuse. We should be looking at three points here.
"Individually all of us weren't good enough. Burnley were getting second balls when we should have been challenging. It wasn't good enough from us.
"We need to show some desire and that we want it and do have some quality players. We need to perform better."