When he arrived in London on a three-year, £5m a season deal last summer, Chelsea took a big risk with Antonio Conte.

While his pedigree was good in Serie A and with the Italian national team, he was untested in the Premier League.

Overnight success does happen – two recent Chelsea managers won the league in their first season in English football.

But equally, highly rated foreign coaches sometimes struggle – many expected Pep Guardiola and Jurgen Klopp to find life easier.

Conte has more or less achieved his objectives with 13 games to play, he is just 10 points off securing a top four place.

And if Chelsea do win the title, other clubs will start circling the boss, and nobody at Stamford Bridge wants to come to the end of a title defence season with only one campaign left on his contract.

Chelsea don't have great form in this respect, of course.

They were quick to extend Jose Mourinho's deal once he had won the league in 2014-15, using exactly the same logic.

Man of the people: Antonio Conte gets carried away, literally, as Chelsea score

Regardless of the reasons for his exit shortly afterwards, it can be argued a simple look at his previous career experience showed that decision to be a bit hasty.

Conte's situation is different.

That £5m wage, outlandish to most of us, is actually smaller than the take-home of the last four permanent Chelsea bosses.

That is because Conte was recruited to manage a side not involved in European competition: a point his representatives will make as soon as they sit down with club director Marina Granovskaia come the season's end.

They will also point out that Conte is presently living between London and Italy, where his wife lives and his daughter is at school, and that a longer deal would provide more certainty on the domestic front.

Pennies from heaven: Chelsea board member Marina Granovskaia (C)

But while such a new deal seems more or less a certainty, more is needed.

There has been a tendency, under Roman Abramovich, for the club to rest on its laurels after a title win.

Never more, in recent seasons, has the club been so in need of a summer rebuild.

Conte has achieved incredible things with a skeleton squad, because he has had the luxury of a largely one-game-a-week schedule.

That won't be the case next season.

The club's lucrative January on the transfer front needs to be spent – and more – to replace a squad that had in many cases reached the end of its natural shelf life.

Old guard: Jose Mourinho (L) and John Terry

There is an argument that the days of Arsene Wenger and Sir Alex Ferguson are in the past: that the life-span of a Premier League coach is now only about three seasons, max.

That may be true.

But Chelsea need to at least aim for success under Conte, in both the short and long term, and that means backing their manager to the hilt this summer.

Keep up to date with the latest news in west London via the free getwestlondon app. You can even set it to receive push notifications for all the breaking news in your area.

Available to download from the App Store or Google Play for Android now!