The perception increased in 2012, with the run of eight losses at the end of the season, despite holding the advantage in many of those matches.
"Of the eight games they lost consecutively, they led in all apart from one or two," Elliott told the Herald on Sunday. "It is no disrespect to what went on last year but I think the perception that they do have those mental lapses is based on a reality.
" I have identified other things that need to be addressed and we are addressing it. As part of developing our culture, we want to develop a mindset that reflects consistency and understands about a high level of execution. I believed we needed that kind of support - coaching staff and players need extra support in making sure it gets ingrained in our culture.
"I've exposed myself to a lot of people as far as developing mentality in my coaching career and he is the best I have come across," says Elliott. "Ceri makes the complex easy to understand because he talks situational. I'm always a bit wary about what I expose the playing group to - because sometimes the process can be more exhausting than the dividend but, with Ceri's stuff, you learn something and then it is with you. I have a high level of belief in what Ceri is presenting because it is pretty special."
Evans was brought into the All Blacks by their mental skills coach (and current assistant manager) Gilbert Enoka ahead of the World Cup. He helped them understand where pressure comes from, how to not get overwhelmed by it and how to stay on task and make the right decisions, even in the toughest, must-win situations. If negative developments on the field looked like dominating a situation, they developed individual triggers to get them back and on task - Graham Henry gave examples of Brad Thorn pouring water over his head or Richie McCaw stomping on the ground.
"We couldn't have been under more pressure at times, but we stuck to our guns and got there in the end," said Richie McCaw in the aftermath of the 8-7 victory over France at Eden Park. "I think the key [to winning the tournament] was expecting things to happen. If you hope for the best and don't prepare for it, when adversity comes you're not ready for it."
Evans is known for providing a framework and tools that allow people to think clearly and correctly under pressure, by taking away the complexity and helping them understand what is going on inside their brains in moments of high pressure.
"I've been impressed so far," says Warriors prop Jacob Lillyman. "The mental side of the game is absolutely huge these days and [Evans] has some tools and ideas that are easy to relate to."