Oct.3 (GMM/Inautonews.com) Jenson Button has admitted having a clear number 2 driver is the best approach for a formula one team.

Team orders are now legal in F1 and Eddie Irvine, Michael Schumacher’s clear supporting driver at Ferrari in the mid nineties, recently hailed Briton Button as the sport’s new “best number 2″.

Button, 31, is actually the only driver still in the running with Sebastian Vettel for the 2011 title, and 17 points ahead of his high profile teammate Lewis Hamilton.

He told Die Welt newspaper: “The best way for a team to win the world championship would probably be to have a number 1 driver and a number 2 who is happy to be the number two.

“That’s not what we have at McLaren,” insisted Button.

As for Irvine’s recent criticism, Button hit back with an apparent reference to 1999, when the Ulsterman came close to the championship in the wake of Schumacher’s broken leg.

“It’s (Irvine’s comments) very sweet,” the Briton told PA Sport recently. “All I can say is that it was fun winning the world championship, and I hope to do it again.”