All Blacks skipper Richie McCaw has reflected on his long international career and what the future holds, but doesn't plan to play on when he isn't good enough to make the team on merit.
The 31-year-old has another four year's on his contract with the NZRU, but will hang up his boots if he doesn't think he can make it to one last World Cup.
"Four years is definitely a long time, but I'm not going to hang around when I'm not good enough to be here," McCaw told the NZ Herald.
"I will move on before that and hopefully you know when that is."
As players get older they adapt their games and sometimes change position to suit their strengths, but McCaw has no interest in shifting to blindside and still thinks he can improve in the All Blacks No.7 jersey.
"I still believe that I can play better and I think I can evolve as a No.7 too," McCaw explained.
"I've always said I would do whatever's right for whatever team I'm in, but I do think my best position is seven. I can play the other ones and if I have to do that, I have to do that.
"That's why I want to carry on playing, because I still think I can offer something. When I stop doing that, or stop enjoying it, I'll start doing something else."
Budding head coach Steve Hansen, who is widely regarded as the favourite to take over from Graham Henry, is in awe of what McCaw has achieved and what he can still offer the team.
Hansen admits that McCaw might struggle to reach the next World Cup, but does believe he can still offer a lot as far as grooming future leaders in the team.
"If you look at it, can he get to four years? I don't think he knows that and I don't think any of us know that," Hansen said.
"What we do know is that he will be mentoring new leaders because we've already lost some overseas - Brad Thorn and Mils [Muliaina] for example.
"There will be opportunities over the next few years, for sure, to allow others to lead the side.
"Regardless of whether he makes four years or not, Richie will mentor others. He's already passing on things to a guy like Kieran Read at the Crusaders. DC [Dan Carter] is also there and he's vice-captain. It's already happening. It's never been his way or the highway, it's our way."
Gilbert has released a new line of rugby cleats. The Gilbert Virtuo 8S is part of the exciting new product. Check it out.
The entire All Blacks apparel line has been updated for 2013/14. Check out the New Zealand All Blacks polo.
The Nike Tiempo is a solid rugby cleat and one of few styles still made from full-grain natural leather.
The Gilbert Blitz 8S rugby cleat is a great cleat at a great price of $69.99. Get a new pair of cleats today.
A cool looking all black rugby cleat with the high performance adidas is known for. Get in the Gear!
Wear the crest of the British and Irish Lions on your t-shirt. A great look for the summer.
The All Blacks Performance t-shirt is black with hints of blue from the training jersey. Very Cool.
The New Zealand All Blacks training jersey for 2013/14. Get in the Gear!
The USA Rugby Pro Alternate rugby jersey is perfect for any fan of the Eagles. Get yours to wear during the summer Test matches.
The NEW All Blacks 2013/14 jersey has arrived at World Rugby Shop. Dare to wear the colors of the All Blacks.