Following Chelsea's three-goal defeat to Manchester City, Liam Rosenior's tenure as head coach has come under scrutiny. Despite initially pointing out that the team was fourth in the Premier League table under his leadership, their recent performance has raised concerns. The team has slipped to ninth place and suffered three consecutive Premier League losses without scoring, adding to the pressure on Rosenior. Their overall record, including a disappointing 8-2 aggregate loss to Paris Saint-Germain in the Champions League, has led to questions about the team's progress under his guidance.

Initially, Rosenior's tenure started positively, with four consecutive Premier League wins against Brentford, Crystal Palace, West Ham, and Wolves. However, they have only managed one win in their last seven games. The gap between Chelsea and top-tier teams like Arsenal, PSG, and Manchester City has become more pronounced, with Sky Sports' Paul Merson stating that 'when Chelsea play the big boys, they get beaten up.' Rosenior has achieved impressive victories away to Napoli and Aston Villa, but the recent loss to Manchester City has fueled supporter pessimism ahead of their meeting with Manchester United.

With an average of 1.54 points per Premier League game under Rosenior, the team's performance has slightly improved but remains the third-lowest by a Chelsea boss since 2004. This is still short of the required standard to secure a Champions League spot.

If Chelsea continue at this rate, they would finish with just 57 points, only five points above Liverpool's current total. The trajectory of their form suggests that even this might be out of reach unless Rosenior can oversee significantly improved results.

Rosenior has reminded fans that even experienced coaches like Pep Guardiola and Jurgen Klopp needed time to 'sort things out' at their respective clubs. However, with 11 Premier League games into his reign, the 41-year-old head coach is facing mounting pressure.

The team's mental fragility, lack of experience, and leadership have contributed to their struggles. Since Rosenior's first game in charge, Chelsea has received more cards than any other side, and the head coach has been unable to address the issue of ill-discipline. Four points behind Liverpool with only six Premier League games remaining, Chelsea's chances of securing a Champions League finish look bleak.

While recent results have been damaging, the underlying numbers suggest that Chelsea's performances under Rosenior have been better than their results indicate, with their net expected goals being the second-highest among Premier League sides. However, with so much at stake, results matter most, and Rosenior has a challenging task ahead to convince fans that he is the right person to take the club forward.