Farrell gives England the message
Sportal.co.nz 23 Oct 2013 Getty Images
"There was a grand slam on the line and you do not get many opportunities for that in the modern day," Farrell told The Guardian.
"We were overpowered and it was the low point of the season, which we are using as motivation."
He said players revealed a lot about themselves in those sorts of situations and it had also taught them about the need to have good communication lines with the referee, something Welsh captain Sam Warburton achieved in comparison to England captain on the day Chris Robshaw.
"We have potential and that is where we are at as a team," Farrell said.
"We have lads on 10 or 15 caps and we hope that they get to 50 or 60. We have to see whether potential can turn into reality."
He believed from what the English management had seen in the last 12 months and with the Lions and Argentina that England was in a better place than anyone in the future.
"The task we face next month is to cope with the step up in terms of the speed of the ball that is a hallmark of matches against the top southern hemisphere sides," he said.
Farrell was at Ellis Park with other England coaches when New Zealand won the Rugby Championship decider against South Africa.
"I spoke to their coaches afterwards and New Zealand epitomise what top level sport is all about.
"They went to Ellis Park via Argentina and to perform like that at altitude, having through three different time zones was fantastic.
"They have not flat-lined since winning the World Cup; instead, they have kicked on under Steve Hansen. Of course they are beatable but put of their strength is that they appreciate that," he said.
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