Oliver Glasner — GafferLens Lab
Oliver Glasner
Nottingham Forest· Premier League · 
Austria · Age 52
80/ 100
High level
84th percentile of covered managers
Career snapshot
Age
52
28 AUG 1974
Appointed
6 JUL 2026
Tenure
3M
3 months
Contractⓘ
Until Jun 2029
Contract confirmed
Senior managerial experienceⓘ
11 years, 7 months
Since 1 JUL 2014
In coaching
11 years, 7 months
Includes academy & assistant roles
Season: 2026/27Competition: Premier LeagueUpdated: Updated this weekSource: GafferLens editorial review
GafferLens Lab
Advanced manager intelligence
GafferLens publishes a metric only when it holds the inputs for it. Where a metric is defined but empty, the definition and methodology are shown so the roadmap is transparent — no estimated xG, PPDA, field tilt or development scores are ever generated.
- Points per game1.66
League points won divided by matches managed in the current spell.
HIGH confidence - Win rate48%
332 matches in sample
HIGH confidence - Performance relative to resourcesGafferLens metric+1 places
Expected 9, actual 8. Editorial expectation, not a financial model.
LOW confidence - Tactical Flexibility IndexGafferLens metricData not currently available
How much a manager's team actually changes behaviour — not how many formations they name.
- Before / under manager comparisonGafferLens metricData not currently available
Team performance in the period before the appointment compared with performance since, adjusted for sample size.
- In-game managementData not currently available
Points gained from losing positions, points lost from winning positions, and results after tactical substitutions.
- Player development outputData not currently available
Minutes given to under-21 players, senior debuts awarded, and measurable improvement in individual output.
- Style versus resultsData not currently available
Whether the tactical approach actually produces outcomes — for example press intensity against high regains, or field tilt against xG.
- Adaptability by opponent styleGafferLens metricData not currently available
Results and performance against high presses, low blocks, back threes and possession-dominant opponents.
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 this week · Confidence MEDIUM · Source: GafferLens editorial review
Image credits
Visual: GafferLens generic Nottingham Forest shirt — an original unbranded illustration using traditional club colours. No licensed photograph verified for Oliver Glasner (status: PLACEHOLDER).