John Stegeman — Data, evidence & sources

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Manager dossier

John Stegeman

Willem II· Eredivisie · Netherlands flag Netherlands

Employed4-4-2Defensive OrganisationEredivisie hub →

GafferScore

67/ 100

Developing / mixed

12th percentile of covered managers

Medium confidenceUpdated today

CAREER & CONTRACT RECORD NOT YET AVAILABLE FOR THIS MANAGER.

Current role

Head Coach

Current base shape

4-4-2

Appointed

Not yet available

Contract expiry

—

Senior managerial experience

Not yet available

Date of birth

Not yet available

Place of birth

Not available

Tactical identity

Defensive Organisation

Provisional data

Season: 2026/27Competition: EredivisieUpdated: Updated todaySource: GafferLens editorial review — club relationship manually verified to the 21 August 2026 baseline

Data profile

Prototype dataset

Metric	Value	Percentile	Comparison group
Attack	64	8th	Covered managers
Defence	78	58th	Covered managers
Pressing	63	9th	Covered managers
Possession	59	7th	Covered managers
Build-Up	63	7th	Covered managers
Transition	69	11th	Covered managers
Player Development	68	10th	Covered managers
Tactical Flexibility	70	21st	Covered managers
GafferScore	67	12th	Covered managers

Verified career record

No verified match record is held for this manager yet. GafferLens does not estimate totals, so figures appear here only once each senior spell has been sourced.

Methodology & data freshness

GafferScore 0.4 (provisional editorial) · tactical model 0.3 (prototype model) · rankings updated 2026-08-17. Form window: Last 10 competitive matches, recency weighted.

Updated today · Confidence MEDIUM · Source: GafferLens editorial review — club relationship manually verified to the 21 August 2026 baseline

Image credits

Visual: GafferLens generic Willem II shirt — an original unbranded illustration using traditional club colours. No licensed photograph verified for John Stegeman (status: PLACEHOLDER).

Open manager comparison

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