The 2025/26 season at Stamford Bridge will be remembered not for silverware, but for the revolving door in the dugout. Three managers in nine months—Enzo Maresca, a brief interim spell from a rookie, and finally Calum Macfarland—transformed Chelsea from a possession-heavy experiment into a reactive, counter-attacking unit. The question is whether this instability cost the Blues a top-four finish or laid the groundwork for a sustainable identity.
The Maresca Experiment: Possession Without Penetration
When Enzo Maresca arrived in the summer of 2025, the mandate was clear: impose a structured, positional play system on a squad brimming with young talent. The Italian coach, fresh from a successful spell in the Championship, demanded patience in buildup and rigid off-ball shape. Early results were promising—Chelsea controlled possession in seven of their first ten Premier League matches, averaging over 60% ball retention.
Yet the numbers told a troubling story. Despite dominating the ball, Chelsea ranked 14th in the league for shots inside the box per 90 minutes. Cole Palmer, the creative fulcrum, was often isolated on the right flank, while Enzo Fernandez and Moises Caicedo struggled to break lines from deep. The attack became predictable: lateral passes in midfield, no penetration through the thirds, and a reliance on individual brilliance from Pedro Neto or Alejandro Garnacho.
The tipping point came in November. A 2–0 defeat to Aston Villa at Villa Park saw Chelsea manage just two shots on target from 68% possession. The board decided that Maresca’s philosophy was incompatible with the squad’s profile—too many ball-carriers, not enough passers in tight spaces. By December, Maresca was dismissed, leaving behind a squad confused about their roles and a fanbase questioning the project.
Why the System Failed
Maresca’s tactics required specific profiles: a deep-lying playmaker who could switch play under pressure, and a false nine who could drop and link. Instead, Chelsea’s squad was built for transition. Liam Delap and Joao Pedro are strikers who thrive on through balls and space, not hold-up play. Estevao Willian, the teenage sensation, is a dribbler who needs freedom to cut inside, not rigid positional discipline.
The mismatch was stark. In Maresca’s final five matches, Chelsea’s expected goals per game dropped to 1.1, the lowest in the top half of the table. The midfield trio of Fernandez, Caicedo, and Palmer became a bottleneck—too many players wanting the ball in the same half-spaces. The system demanded patience; the squad wanted speed.
The Rosenior Interregnum: Stability or Stagnation?
After Maresca’s exit, the club turned to an internal candidate—a first-team coach with no prior managerial experience at senior level. The appointment was framed as a temporary measure, a chance to stabilise the dressing room before a permanent hire in the summer. It lasted just 14 matches.
Rosenior simplified the approach. He abandoned the strict positional play, allowing players more freedom to rotate positions in the final third. Palmer was moved centrally, where he could drift and combine with the full-backs. The immediate impact was positive: a 3–1 win over Brighton saw Chelsea generate 2.3 xG, their highest under any manager that season.
But the underlying issues persisted. Defensive structure became chaotic without Maresca’s pressing triggers. Chelsea conceded first in eight of Rosenior’s 14 matches, and their expected goals against per game rose to 1.8. The back four—often a mix of Levi Colwill, Reece James, Marc Cucurella, and Trevoh Chalobah—lacked cohesion. James, returning from injury, was exposed in transition, while Cucurella’s aggressive positioning left gaps behind.
The board grew concerned. Rosenior’s approach was too reactive, too dependent on individual moments. In a crucial February run against Arsenal, Liverpool, and Manchester City, Chelsea took just two points from nine. The decision was made to bring in an external figure before the season’s final stretch.
Macfarland’s Counter-Attacking Revolution
Calum Macfarland arrived in April 2026 with a reputation for pragmatism. His brief was simple: salvage a top-six finish and build an identity that the squad could execute immediately. He didn’t try to impose a complex system. Instead, he studied the squad’s strengths—pace in wide areas, physicality in midfield, and a striker who could run in behind.
Macfarland switched to a 4-2-3-1 that became a 4-4-2 out of possession. The defensive line dropped deeper, inviting pressure before springing counters. Caicedo and Fernandez were given clear roles: one screens the back four, the other launches transitions. Palmer was deployed as a second striker behind Delap, free to find space between the lines.
The transformation was immediate. In Macfarland’s first five matches, Chelsea won four, including a dominant win over Tottenham. The stats shifted dramatically:
| Metric | Under Maresca (first 10 PL matches) | Under Rosenior (14 PL matches) | Under Macfarland (first 5 PL matches) |
|---|---|---|---|
| Possession % | 62.3 | 54.1 | 48.7 |
| Shots per match | 12.1 | 13.4 | 14.8 |
| Counter-attack goals | 1 | 3 | 4 |
| Goals conceded per match | 1.2 | 1.6 | 0.8 |
The data reveals a clear shift: less control, more efficiency. Chelsea became the league’s most dangerous transition side under Macfarland, averaging 2.1 fast breaks per match, up from 0.8 under Maresca.
The FA Cup Final: A Case Study in Pragmatism
The 2026 FA Cup final against Manchester City was the ultimate test of Macfarland’s philosophy. City, under Pep Guardiola, dominated possession as expected—71% to Chelsea’s 29%. But the Blues executed a perfect game plan: sit deep, absorb pressure, and hit on the break.
Joao Pedro’s winning goal in the 78th minute was a microcosm of Macfarland’s approach. Chalobah won a header in Chelsea’s box, Fernandez played a first-time pass to Palmer, who released Garnacho down the left. The Argentine’s cross found Pedro arriving late at the back post. Three passes, one goal, zero possession.
The victory was Chelsea’s first major trophy in recent seasons. But it also highlighted the squad’s limitations—they cannot dominate games, but they can win them.
The Cost of Instability
While Macfarland’s late-season surge was impressive, the managerial churn came at a price. Chelsea finished sixth in the Premier League, six points off fourth place. The early-season inconsistency under Maresca cost them crucial points against mid-table sides like Brentford and Bournemouth.
The squad’s average age of 23—the youngest in the league—meant they lacked the experience to adapt mid-game under different systems. Palmer, despite his contributions, admitted to struggling with tactical changes. Fernandez was more effective under Macfarland’s direct style than Maresca’s possession game.
| Manager | Points per match | Win % | Goals for per match | Goals against per match |
|---|---|---|---|---|
| Maresca | 1.6 | 50% | 1.4 | 1.2 |
| Rosenior | 1.4 | 43% | 1.5 | 1.6 |
| Macfarland | 2.0 | 80% | 2.2 | 0.8 |
The table underscores Macfarland’s effectiveness, but the sample size is small. The question remains: can he sustain this over a full season?
Risks Ahead: Sustainability and Squad Fit
Macfarland’s counter-attacking system has clear vulnerabilities. Against teams that sit deep—like Burnley or Sheffield United—Chelsea’s lack of possession structure becomes a liability. They struggle to break down low blocks because the midfield lacks a progressive passer. Fernandez is excellent in transition but not a tempo controller. Caicedo is a destroyer, not a metronome.
The summer transfer window will be critical. Chelsea’s squad, valued at over €1 billion, is built for speed and directness. But if Macfarland stays, they need a creative midfielder who can unlock defences when counters aren’t available. A player like Palmer could thrive in a free role, but he needs support from deeper positions.
There is also the risk of tactical predictability. Once opponents study Macfarland’s patterns—drop deep, hit the channels, overload the left side—they can adapt. The 2025/26 season ended with optimism, but the Premier League is ruthless. Teams will adjust.
Conclusion: A Season of Lessons
The 2025/26 season taught Chelsea that identity matters more than philosophy. Maresca’s possession system was theoretically sound but practically flawed. Rosenior’s interim spell offered stability but no direction. Macfarland’s pragmatism delivered results but raised questions about long-term viability.
For more on the tactical evolution, read our breakdown of why Chelsea sacked Maresca and analysis of Chelsea’s counter-attacking system. The club’s tactics and management hub tracks these developments in real time.
The Blues have a young, talented squad, a manager who has found a winning formula, and a board willing to make difficult decisions. The foundation is there. Now, they need continuity. One manager, one system, one season. That is the challenge for 2026/27.