Sean Lamont believes Scotland can put their disastrous autumn series behind them and win next year's Six Nations.
Scotland slipped to 12th in the world rankings following last month's dire defeat to Tonga, which resulted in the resignation of head coach Andy Robinson.
They face a difficult opening Six Nations assignment against England on February 2, but Lamont says the Scots can take inspiration from the manner in which Stuart Lancaster has revived their old rivals.
"I'd like to win it (the Six Nations)," said Lamont, "but we need to be clinical in every game and flawless.
"We can do it, as we've shown against the big teams. We can all on our day be those world beaters, it's just about getting that collective spot on every game.
"But the rollercoaster ride of performances needs to go. We've got England first up, who will be on great form because they had a great win against New Zealand and they've got a good team together.
"A change of coach is always an uncertain time, but it doesn't mean it can't be done. Lancaster came in and has turned it round. It can be done."
Scotland have yet to name a replacement for Robinson, with his assistant Scott Johnson tipped to land the post on an interim basis.
"He's someone that knows the players, he is a good coach and it would probably be the logical step-up," Lamont added. "But as a player, it's the powers that be that will decide that."
Lamont dismissed the suggestion that the abject performance against Tonga in Aberdeen, as Scotland lost 21-15, demonstrated the players' belief in Robinson had gone.
Lamont said: "It wasn't a case of Andy lost the dressing room. It wasn't that at all. It was just one of those things, one of those games where we weren't there all the way.
"It cost Robbo his job in the end. He said it was a coach-killing performance. (But) there's no point dwelling on it too much because it can eat you up and you can't change what's happened.
"It is tough to take. You throw yourself in physically and mentally. It was a tough autumn because we didn't get anything and we lost to Tonga, which should never happen.
"We crossed the line three times and didn't get a score, which is criminal. That should have been at least 15 points."