Sean Dyche has criticised Everton’s ‘leaky’ defence following a second defeat after going two-nil up in back-to-back games. (More Football News)

Everton lost 3-2 to Aston Villa after leading by two goals after 30 minutes, having also lost 3-2 to Bournemouth after leading by the same advantage prior to the international break.

In doing so, Dyche’s side became only the second side in Premier League history to lose back-to-back games after leading by two or more goals in both.

Following Saturday’s defeat to Villa, Dyche feels his side are lacking the cutting edge at vital moments.

“Today, we make a mistake and they capitalise on it. I said to the players, the killer instinct in both boxes is what’s vital. The key moment was to go 3-1 up. We didn’t and we made a mistake, and they capitalised on it. We have to keep going,” he told Sky Sports.

“We’re making high-quality chances. At the minute, we’ve got to score as many as it takes to win a game. That’s been a challenge since I’ve been at the club. We can’t keep leaking goals like that.

“We’re having to manipulate the team. We have to keep believing in each other. You’ve got a responsibility to deal with it – and that’s what we have to do, including me.

“[The players] are an honest group. They’ve worked very hard and been through a lot. We are where we are, so they’re very disappointed. We have to respond. Before you know it, Tuesday will be upon us.”

Everton have struggled with injury so far this season and find themselves increasingly short at the back.

Vitaliy Mykolenko had to be substituted after 26 minutes against Villa due to injury and was replaced by James Garner, traditionally a midfielder.

?“We’re certainly taking some knocks at the minute. Every mistake seems to be a goal, and every chance we don’t quite capitalise on,” reflected Dyche.

“Unfortunately we were on the wrong side of the margins again today. It’s a tough one to take, for different reasons than the last game. We’re down to a low squad anyway, so it’s been a challenge?without a shadow of a doubt.”