"He has to be fresh when we have the ball, he can play right and left, but without thinking too much about defensive work".
Palace, meanwhile, are looking over their shoulders at the relegation zone.
Bernard gave the Blues the lead on 18 minutes, after being set-up by Walcott.
"Since I arrived, the team did a fantastic job", the Italian told BT Sport.
Everton have 36 points from 26 games, a point behind fifth-placed Tottenham Hotspur who now occupy the Europa League qualifying spot, and five points behind Chelsea in fourth, which brings Champions League football next season.
However, Palace were gifted a route back into the game six minutes into the second half thanks to another error from Everton goalkeeper Jordan Pickford.
"My studs got caught but I hold my hands up for that".
"As a person, I don't let it affect me".
Just as Everton were wobbling, though, a moment of magic from Richarlison swung the game back in their favour seven minutes later.
Richarlison bailed out his team-mate with his exhilarating run and finish as he raced onto Calvert-Lewin's flick-on, holding off Gary Cahill in the process, before Pickford redeemed himself somewhat with a point-blank block from Benteke's header. Richarlison did a fantastic counter attack and we won for this reason.
Indeed, the three points are vital for Ancelotti's Everton side as it would take them closer to a spot in European competition next season, as they will be able to leapfrog Manchester United and draw level on points with Sheffield United.