Antonio Conte knows it won't last forever. A run of seven wins in seven games has catapulted Chelsea to the top of the Premier League and it coincided with his switch to a 3-4-3 (or, if you're a touch more pedantic, a 3-4-2-1). But the success was also made possible by the fact that his first-choice XI more or less stayed healthy. And there's a learning curve to how opposing coaches adjust to it. Over time, you'd imagine, they'll find countermeasures.
For much of the first half against Tottenham on Saturday, it appeared as that time was now.