Chelsea manager Jose Mourinho says he does not get nervous during matches because he can "smell" when goals are about to be scored.
Mourinho's two substitutions inspired Chelsea to a 3-1 win at Norwich on Sunday. The visitors - who made the 120-mile journey to Norfolk by plane on Saturday - had got off to a flying start when Oscar fired them into a fourth-minute lead after Demba Ba's lay-off from a Frank Lampard through-ball.
However, instead of pressing on to take command of the game, Chelsea failed to make the most of their positive opening as Norwich, fighting for points at the other end of table, responded after the break.
After the introduction of Eden Hazard and Willian, Norwich saw all their hard work undone when a poor backpass from Alex Tettey was seized on by the Belgian, who squeezed the ball under England goalkeeper John Ruddy before the Brazilian midfielder cracked in a superb angled drive to finally put the result beyond doubt.
Mourinho acknowledged Norwich had pushed his side, using the strengths of a squad assembled at a fraction of the cost of his own.
"I think that if you try to play like other people do, and you have no players for that, you are very stupid," said the Chelsea manager.
"If you try to play like someone else does, you never reach their level. You have to try and be the best to the style of your players. That is very simple.
"When I say to (Branislav) Ivanovic: 'Don't make an early cross because (Didier) Drogba is not there,' I know what I'm saying. He'd be crossing for what? Why would you want to play like another team? Don't try to be clever because you will become stupid."
Mourinho admitted there was a period where he felt the match could go either way before the tactical changes paid off.
"During the game I am not nervous. I have feelings. I smell things, and when that easy (open) goal (from Ba) was missed, I had a smell that they would score a goal.
"We could have won or lost it at 1-1 because we, at that moment, didn't want a point. We are trying to be top, so we tried to win it."
Mourinho felt he had to do something to try to turn the game back in his side's favour, with Norwich pressing for long spells in the second half.
"They come in and they change the game, the manager did very well. If they come on and make it worse, it's a very bad decision by the manager. It is their responsibility," the Chelsea manager said.
"We all knew that a point here would be a bad result for us, but I think the team - not just the boys who came on - coped well with the pressure."