According to the LMA statistics, managers are staying at their jobs for one of the shortest time in history.
Since joining City, Guardiola has led the Cityzens to 17 major trophies and 20 in all.
The Blues’ poor run also included defeats to Paris Saint-Germain in the Champions League.
The England U-21 international has signed a six-year contract that keeps him at Stamford Bridge until 2031.
“We’ve spent almost our season in the top four,” said Maresca, who is facing an injury crisis for Saturday’s trip to Aston Villa.
The win also put Chelsea two points ahead of Arsenal.
Maresca played down talk of Chelsea putting behind them a disappointing couple of seasons when they finished sixth and 12th in the Premier League.
Noni Madueke delivered deadly blows with three successive goals in 15 minutes.
“Chelsea Football Club is delighted to announce the appointment of Enzo Maresca as new head coach of the men’s team.”
