Eddie Jones has hinted that he plans to leave his job as England head coach when his contract expires in 2019, regardless of the team's success.
The Australian's deal with the RFU runs until the end of the World Cup in Japan, and he has suggested before that he would quit if his side lifted the trophy.
Jones has guided England to 13 consecutive Test wins since taking over from Stuart Lancaster, who left in Nov. 2015, and has gained widespread public support, raising hopes of global glory.
However, the prospect of extending his tenure dimmed on Wednesday after he gave interviews to British newspapers. "Four years is enough," he told The Times. "It is quite emotionally draining."
Jones cited the ambition of having his team produce the perfect performance as a driving force in his coaching, and insisted that modern methods would bring the best out of England.
"That old style -- 'I'm gonna beat you with fear' -- it just doesn't work today," he said. "People are educated differently and you've got to treat them differently. You've got to be smart about how to get what you want out of people.
"The balance of how you do things changes. Maybe in the old days it was 60 percent fear and hairdryer-type coaching, 40 percent arm around the shoulder. Today, I think it's probably 70 percent arm around the shoulder, and 30 percent fear.
"Every now and then, when I think I am being too hard on a player, I have to pull myself back and think, 'No, I shouldn't behave like that.' I am still too hard on the staff. That is an area I am not good at -- because I expect the staff to be as driven as me and when they are not, I get disappointed."