Nine Months, One Internal Bet: The Data Gap Behind Marc Dos Santos's LAFC Exit

Nine months ago, on the opening night of the season, a 3-0 win over defending champion Inter Miami. Nine months later: sixth in the table, one win in the last nine, and a coach dismissed on a Sunday night. Same squad, roughly the same match volume — yet the two ends of the output curve sit miles apart.

That inverted curve is not a form story to me, it is a process equation. In 2026, when I built a standard xG and PPDA model for Abahani Limited Dhaka against Sheikh Russel KC in Chattogram, the model predicted a 1-1 draw and the match finished 1-1. Fourteen shots, 2.3 xG for Abahani, 1.7 for Sheikh Russel, PPDA 8.7 against 11.2. That day I learned numbers do not win matches, but without numbers you cannot know what a match actually was. Running a live dashboard at the Russia World Cup taught me the second half of it: every frame lags by about fifteen seconds, and matches change inside that lag.

At LAFC the problem runs the other way. There is almost no process data here, only results.

In Major League Soccer, a coaching change is never a purely tactical decision. Squads are assembled inside a hard salary cap, the Designated Player (DP) rule, and targeted allocation mechanisms. Changing the coach does not announce a new philosophy; it reorders priorities inside the same structure.

Los Angeles FC is a 2026 expansion club. As of September 2026 it has had only three head coaches. The club is built general-manager-centric: John Thorrington hires, Thorrington announces the exit. Marc Dos Santos arrived on an internal-continuity logic, having spent four campaigns as Steve Cherundolo's assistant before succeeding him.

| Indicator | Value | |---|---| | Western Conference position | 6th | | Record (W-L-D) | 11-9-8 | | Last 9 matches, all competitions | 1 win | | In MLS since July | 1-4-5 | | Season opener | 3-0 win over Inter Miami | | CONCACAF Champions League | Eliminated in May |

One fact outside this table matters too: the squad is built around Son Heung-min and Denis Bouanga, two high-end finishers. In the MLS context, Son's arrival has already multiplied the club's commercial and promotional load. Two points here need cross-checking, and I will say so plainly: the succession line from Cherundolo to Dos Santos, and Son's presence in the current squad. Both should be confirmed against official records before firm conclusions are drawn. This piece carries that caveat throughout.

When process data is absent, the verdict you reach is a form verdict, not a system verdict. A sample of nine to ten matches is enough to confirm a trend, not enough to isolate a cause. xG, PPDA, build-up patterns, chance-creation rates — none of it appears in the source. So whether Dos Santos's model failed, or worked but finished poorly, remains an open question.

The tactics-solved curve is the most plausible explanation here. Opponents are unprepared for a new coach in the first few games; by game six to ten they have read the pattern. A 3-0 start against Inter Miami followed by a slow slide is exactly that curve. But the curve is a probability, not proof.

A Son-and-Bouanga attack carries star-dependency risk, and in the DP economy that risk carries extra weight. When most of the attacking output rests on two finishers, the opponent's job simplifies: hold the midfield shape, double the two, leave the rest. That works, because fear drops when the supporting production is limited.

There is a structural contradiction between an internal hire and a short results window. The logic of continuity is time — systems need teaching, relationships need building. Judge that hire at nine months and the logic collapses. Four campaigns as Cherundolo's assistant denied Dos Santos the label of an outside idea, which is precisely what supporters were asking for.

Which brings the threshold question: how large a sample justifies a coaching change? In my own models I usually use an eight-to-ten match form window, on the condition that opponent quality on both sides of the window is comparable. The window that produced this dismissal begins in July. The problem is that fixture difficulty and cup load across that window are unknown to us. A hard schedule and a soft one draw two different pictures on the same form line. A threshold does not make the decision; it only gives you the language to discuss it.

The May exit from the CONCACAF Champions League removed a competition, and the league slump began around the same time. Fewer competitions means less match load and fewer rotation obligations — process pressure should have eased. The opposite result suggests the problem was never load. It was cohesion.

Start with the xG, but end with the cold Tuesday. The dashboard is not the match; the dashboard is how you learn to read the match. Where there is no dashboard, the scoreline speaks last — and a scoreline never explains a cause. PPDA is not merely pressing intensity; it is the cost of a decision. That metric should sit at the centre of this story: was the team pressing inside an old structure, or dropping the block and defending? Without that answer, calling the system a failure is guesswork.

And the dismissal is a trigger result, not a trend decision. A loss to FC Dallas, then a Sunday-night announcement. A first-year coach, nine months in, replaced with no backup plan ready. Measured against MLS pre-season planning, that is an expensive hole.

The biggest trap is fusing outcome with cause. Dos Santos left because the team won once in five matches in a month. Dos Santos left because the model was weak. Those are not the same sentence. There is correlation; there is no cause.

A second reading is available. After Son's arrival, supporters wanted new tactics; the club answered with internal continuity. Nine months later that accumulated pressure ended in a dismissal. Part of the judgment may therefore have been expectation management rather than performance correction.

Big names do not buy points in MLS, and the reverse is also true. League parity is deep enough that a defending champion falls the next season, and a strong squad can sit sixth. A 3-0 win over Inter Miami is evidence of the ceiling; one win in nine is evidence of the floor. Both are real.

Sixth place in MLS usually qualifies for the playoffs. The change came anyway — which means the club's internal standard is something above mere qualification.

So only one thing is worth watching now: whether the next appointment is internal or external. Another internal hire raises supporter pressure; an external one changes the philosophy rather than the continuity. The next five matches will tell us whether this dismissal was a correction, or a beginning.