Some people can't resist the urge to tamper, even when they're ahead. Take Celtic's manager Neil Lennon. This week it became clear he's ready to make immediate changes to the team line-up - even though they just created a Scottish Premier League record with their nine-goal dismantling of Aberdeen on Saturday.
The Dons left Glasgow thanking their lucky stars they had not been subject to a double-figure defeat. But that may not be enough for Lennon. He knows Rangers' 3-1 win at Saint Mirren yesterday put the Light Blues back top of the Scottish Premiere League by one point, but he's still looking more concerned about Celtic's match against Hearts at Tynecastle tomorrow.
"We have a big week coming up, Hearts away and Saint Mirren away," Lennon told the press, hinting there may be a change to the line-up. "So there will be no room for complacency. It is a totally different scenario on Wednesday."
"We will enjoy Saturday but we will start concentrating on Hearts. There will possibly be a few changes to the team, believe it or not, but we will talk about that over the next couple of days."
Lennon then praised his players saying: "You can see what Hooper and Stokes bring to the team at times. They are good players and we feel they both have goalscoring instincts. Stokes took his penalties well and Gary's three goals were very, very good. His instinct is his strength.
"Shaun Maloney was terrific, as was Ledley, and to keep a clean sheet again was very pleasing because it could have been different. We had one cleared off the line early on," added Lennon.
"It was a challenge for them to come in at 4-0 up at half time, I'm sure many of them wouldn't have been in that position before. It would have been easy to take their foot off the pedal but they didn't and to their credit they got another five in the second half, which is absolutely fantastic. We are a long way off from where we want to be yet but that showed there has been improvement."