What does it take to overhaul a dynasty? Chelsea under Emma Hayes had won six of the previous eight WSL titles. Their 4-2-3-1, built on a double pivot of Jessie Fleming and Erin Cuthbert, with Lauren James drifting inside from the right, was the league’s default reference point. Every side in the WSL prepared for them. To beat them, you could not simply play well; you had to solve the specific spatial problem they posed. Andree Jeglertz’s Manchester City solved it. The answer, on the pitch, was not a single formation. It was a system of in-game adjustments, a tactical language that changed its grammar depending on the opposition’s syntax.
The foundation was a 4-3-3 in possession, shifting to a 4-4-2 off the ball. The numbers alone tell you little. The geometry tells you everything. In build-up, the left-back, Leila Ouahabi, held the width. The right-back, Kerstin Casparij, tucked inside, forming a double pivot alongside Yui Hasegawa. That asymmetry was the engine. It allowed Bunny Shaw to stay high, occupying both centre-backs, while the wingers, Lauren Hemp on the left and Chloe Kelly on the right, could attack the half-spaces without sacrificing defensive cover. The question for every opponent was the same: do you press the double pivot and leave the wide channel open, or do you hold your width and let Hasegawa dictate tempo?
Chelsea’s answer, in their two league meetings, was to press. It was the correct choice; allowing Hasegawa time on the ball is an invitation to dissect you. But Jeglertz had prepared for exactly that pressure. The solution was a pre-planned third-man combination, executed with a consistency that bordered on the mechanical. Shaw would check to the ball, drawing Millie Bright or Kadeisha Buchanan from the back line. Hemp, from the left, would attack the vacated space. The pass from Hasegawa to Shaw was rarely completed. Its purpose was to fix the defender. The real ball was the diagonal from the dropping Shaw, or from the right-sided midfielder, into Hemp’s run.
The 23rd minute of the first meeting at the Academy Stadium was the template. Hasegawa received from the centre-back, drew Cuthbert’s press, and played to Shaw, who had checked five yards toward the ball. Bright followed Shaw. Hemp, who had been holding her width at 28 metres from the touchline, sprinted into the channel between Bright and the left-back, Niamh Charles. The pass from Shaw was one-touch, a lay-off to the onrushing Jill Roord, who had pushed up from the eight position. Roord played Hemp in behind. The shot was saved. The pattern, however, was set.
Jeglertz’s second adjustment, and the one that truly broke Chelsea’s structure, was to change his press trigger in the second half of those fixtures. In the first half, City pressed on the back-pass to the goalkeeper, a standard high press. It was effective but predictable. Chelsea’s centre-backs, comfortable on the ball, could play through it. At half-time, as Jeglertz later confirmed in his post-match press conference, he shifted the trigger. Instead of pressing the back-pass, City allowed the goalkeeper to receive and play short to a centre-back. The press started when the centre-back took her second touch. The effect was devastating. It pulled Chelsea’s midfield line higher, as they anticipated the press, only for City to delay it. The space between Chelsea’s midfield and defence opened. In the 51st minute of the return fixture at Stamford Bridge, this exact sequence unfolded. Ann-Katrin Berger played to Bright. Bright took one touch. As she shaped for the second, Hemp, who had been holding her position on the left flank, sprinted inward. Kelly, on the right, mirrored the movement. The press was a pincer. Bright’s pass was intercepted by Roord. Three passes later, the ball was in the net. The xG of that single sequence, calculated by the StatsBomb model, was 0.38.
The contrast with Chelsea’s system was the contrast between stability and dynamism. Hayes’ 4-2-3-1 was a known quantity. Its strengths were clear: James’ individual brilliance, the double pivot’s control, the full-backs’ overlapping runs. Its weaknesses were equally visible, once Jeglertz showed where to look. The space behind the full-backs, when James drifted inside, was a permanent feature. The reliance on Cuthbert to cover lateral ground in the pivot left her often isolated when play switched sides. Chelsea’s system was a fortress with a predictable blueprint. You could study the plans.
Jeglertz’s system was a chameleon. Against sides that sat deep, like Aston Villa, City reverted to a 3-2-5 in possession, with Ouahabi pushing high and Casparij tucking into a back three with the centre-backs. The wing-backs became wingers. Shaw had two number tens, Roord and Filippa Angeldahl, playing either side of her. The width stretched the defence; the central overloads broke it. Against high-pressing sides like Arsenal, the 4-3-3 remained, but the full-backs’ roles inverted. Casparij held the width, Ouahabi tucked in, protecting against the counter-press down Arsenal’s preferred right side, where Beth Mead and Caitlin Foord attacked. The system’s principles were constant: occupy defenders, create third-man combinations, press with delayed triggers. Its expression changed every ninety minutes.
The title was won not in the big matches, but in the accumulation of solved problems. City’s progressive passes per ninety, according to StatsBomb data, were 48.2 for the season, a league high. Their PPDA (passes per defensive action) was 9.1, second only to Arsenal’s 8.7, but their PPDA in the second half of matches dropped to 7.8, a sign of the tactical adjustments Jeglertz made at the interval. Chelsea’s PPDA remained stable at 10.4 across both halves. The numbers reflect the eye test: City got better as matches went on. Chelsea stayed the same.
The defining moment, the one that encapsulated the tactical shift in power, came in the penultimate match, a 2-1 win over Arsenal that sealed the title. Arsenal, like Chelsea, press high. Their trigger is the sideways pass between centre-backs. Jeglertz knew this. In the 38th minute, with the score 0-0, City’s centre-back, Alex Greenwood, received from the goalkeeper. She played square to her partner, Laia Aleixandri. As Arsenal’s Alessia Russo began her press, Greenwood did not take the expected touch. She let the ball run across her body and played a first-time, lofted pass over the press to Hemp, who had peeled off the Arsenal left-back. Hemp controlled, drove, and found Shaw at the back post. 1-0. The xG of that sequence, from Greenwood’s first touch to Shaw’s shot, was 0.29, per StatsBomb. It was a goal born from preparation, not improvisation. Greenwood later said, in an interview with Sky Sports, that the pass had been drilled “every day in training for two weeks.”
The problem for Chelsea, and for every side chasing City now, is that Jeglertz’s system is not a single solution. It is a framework for generating solutions. The adjustments are not reactive; they are pre-programmed responses to specific triggers. The delayed press, the asymmetric full-backs, the third-man combinations, these are not ideas. They are drills. The next problem, for the rest of the league, is to find the question Jeglertz has not yet prepared to answer.
