Celtic manager Gordon Strachan has identified the two ingredients his team need to reverse a four-match losing streak against Rangers - composure and hunger.
Celtic have not scored in four Old Firm games and need to change that tomorrow in the first of two derbies at Celtic Park that could decide the Clydesdale Bank Premier League title.
But Strachan believes his team did well enough at Ibrox last month - when they lost to Kevin Thomson's 45th-minute effort - to suggest they can beat their rivals.
And Sunday's 4-1 win win over Motherwell on a poor surface at Fir Park, which followed a 1-0 home defeat by the Steelmen, has given Strachan encouragement that they are rediscovering their knack in the penalty box.
"We did enough in the last (Rangers) game to say that we can create chances," Strachan said.
"It's basically being more composed and more hungry in the box. I think it's as simple as that.
"You can't really work on that. You can put people in positions but it's how hungry you go for it after that.
"We have shown them bits and bobs and hopefully that will click.
"We were hungry in the Motherwell game. Motherwell were unfortunate, they were fortunate the week before.
"We had five shots on target on Sunday and scored with four, we had nine the week before and scored with none. That's how crazy football is.
"But we don't blame luck, it's composure and bravery in the box. Hopefully we have got that feeling back again and that will help us.
"When you win games of football that helps your confidence. But did they not look like a confident team on Sunday?
"They looked like a team that was willing to take the ball and try to play and be brave on the ball.
"You don't get a 4-1 win if you don't feel reasonably happy in the environment you train and play."
The Fir Park clash saw Jan Vennegoor of Hesselink and Scott McDonald both on target following a relatively barren run for the frontmen.
And Strachan admits they needed goals before the visit of Rangers.
Strachan said: "I think everyone who scores goals and calls themselves a striker, once they score goals they feel better about themselves.
"They needed it - it would have been nice the week before. They need to score goals, if you are a striker, you are judged on scoring goals.
"Jan is on about 18 goals in 38 games and Scott is well above one in every two games, so that is not too bad."
McDonald may find himself on the bench though after Georgios Samaras was preferred to the Australian against the solid Rangers defence on March 27.
"We changed our style of play a bit at Ibrox the last time and did get shots on target," Strachan said.
"So that was far better. You have to try to tweak your own formation to see how things work. Everything worked well that day apart from not scoring goals."
Celtic have not scored goals against Rangers for four games, since Walter Smith returned to Ibrox in January last year.
Two of those games have reminded Celtic fans of the 1-0 wins Rangers became famous for in Old Firm derbies in Smith's first spell in charge, when they would soak up the pressure and hit Celtic with a rare chance.
And Strachan admits getting the first goal is vital tomorrow.
"It's been crucial since I came here, whoever scores the first goal doesn't get beat," the former Coventry and Southampton manager said.
