- Before
- Runs a validation plan that needs 34,600 hours with a team that has 22,400 — and hears about drift at the next annual validation.
- Now
- Sees every model’s control chart each month, decides the 14 borderline entries herself, and signs validations drafted from the evidence.
One Monday: a model drifts, and the validation is signed
Northmere Bancorp, $41.3 billion in assets, 412 inventory entries, the Model Risk Committee in eight days. Here is Monday 12 October, screen by screen, in the working solution.
- 0108:52
Every model on its own control chart
Elena Marsh · Head of Model Risk ManagementThe 06:00 run scored 183 models on September production data: 0 out of control, 2 trending, 182 in control. The CRE probability of default model, CRE-PD-v4, is trending — its rolling 12-month AUC at 0.796 against a centre of 0.820 and a lower control limit of 0.795. Then the September CRE defaults file arrives.
“September defaults arrived at 08:52 — 3,084 CRE loans to score. The line has been below centre for a year and falling every month since December.”
- 0209:15
Out of control — and a revalidation task opens
Outcomes analystElena presses “Score September’s defaults”. The new point lands at 0.788, below the lower control limit, and current loan-to-value PSI reaches 0.27 against a 0.25 limit. Revalidation task RV-2026-031 opens on its own: the trigger, the scope (office recalibration; construction-loan use), Owen Adeyemi assigned, joined to the annual validation due 30 October, four pieces of evidence attached.
“Accuracy fell below the lower control limit — AUC 0.788 against 0.795 in September, after a year below centre and nine months falling.”
- 03One click
The drift point opens its evidence
Elena Marsh · Head of Model Risk ManagementSeptember’s point shows where the drop comes from. By segment, office has fallen to an AUC of 0.68 from 0.80 at development, while multifamily, retail, industrial and hospitality hold. Office loans defaulted at twice the predicted rate: 16 defaults against 8.1 expected. The office back-test, the Q3 2026 monitoring report, the challenger results and change log CL-44 sit one click away.
- 044 min 10 s
The whole inventory, re-scoped to SR 26-2
Inventory scoper · Materiality tiererThe CRE model is not the only thing due before the committee. Elena starts the SR 26-2 re-scope: four agents test all 412 entries against the new definition of a model. 298 stay models, 86 move to the tools and calculations register, 28 move to the AI tool register, and 14 borderline spreadsheets come to her to decide. Re-tiered by materiality, the 12-month plan falls from 214 validations to 131 — from 34,600 hours to 22,320, inside the team’s 22,400.
“298 + 86 + 28 = 412 · nothing is deleted: every entry that leaves keeps its owner, history and reason, for internal audit to test.”
- 05Every entry
Model or not — with the reason written down
Inventory scoperEach entry carries its scope test against SR 26-2 §II and its materiality against §III. For CRE-PD-v4: a complex quantitative method, statistical theory, quantitative estimates, not generative AI — so a model. Exposure of $11.8 billion and a financial-reporting purpose keep it in Tier 1.
“Logistic regression fitted to loan history — statistical theory turning inputs into default estimates, so a model.”
- 062 min 59 s
The annual validation, drafted from 61 documents
Evidence reader · Validation drafterOwen’s validation starts from the evidence, not a blank template. The agents read the 146-page development document, four monitoring reports, the change log, the 2025 validation and the user guide; ran 23 of 23 tests; and drafted six report sections with 31 citations and four findings — one high, two medium, one low. The proposed rating is “Fit for use with conditions”, and the severity of each finding is the validator’s to change.
- 07Next
The back-test a portfolio total would have missed
Outcomes analystAcross all CRE, 48 defaults on 3,084 loans — 1.56% observed against 1.34% predicted — sits inside the range. Office does not: 3.65% observed against 1.84% predicted, outside the 99% range, p = 0.008. The draft asks for a governed overlay of +181 bp until the office segment is recalibrated — about $13.7 million added to the CRE allowance.
“Overall the model looks calibrated; the office segment is not. A test on the total alone would have missed it.”
- 08Signed
Two signatures, and conditions the committee approves
Elena Marsh · Head of Model Risk ManagementElena approves the 2026 validation of CRE-PD-v4 as fit for use with conditions: the governed office overlay, no construction loans rated with the model until that use is validated, and the office segment recalibrated and re-validated by 18 January 2027. The signature records its meaning — “Approved as Head of Model Risk Management” — and Owen Adeyemi co-signs as lead validator.
- 09Chased
Every finding to an owner and a date
Findings trackerThe four new findings join the tracker with due dates set from the committee date by severity: High 18 January 2027, Medium 18 April 2027, Low 20 October 2027. Open findings rise from 63 to 67. Elena asks for reminders on the 7 overdue findings, the oldest 104 days late, and the tracker drafts the two extension requests for the committee.
The findings tracker never closes a finding — a validator does.
- 10Tue 20 Oct · 14:00
The committee decides what only it can
David Kessler · Chief Risk OfficerThe pack closes Friday 16 October. Five agenda items, four decisions asked: ratify the 412 scope decisions and 298 tiers and adopt the 131-validation plan; approve CRE-PD-v4 with conditions; rule on 7 overdue findings and 2 extension requests; adopt the AI tool standard v1 with 4 control gaps to close in 30 days.