The intervention threshold
Step in when being wrong would be costly and hard to reverse (one-way doors, safety, security, data integrity, customer impact in flight). Stay out when the decision is reversible and owning the outcome teaches more than the correction would. Intervene by raising what was missed instead of by overriding.
Evidence grade: practice A widely adopted practitioner model with clear provenance.
Use it when
Every technical decision heading somewhere the manager would not have taken it.
Where it stops working
It fails in two mirror-image ways: overriding on preference, and avoiding a dangerous call to dodge conflict. It only works when applied consistently, whatever the manager's mood.
Where the standard uses it
- TJ-4Technical credibility and interventionStaying close enough to judge, and knowing when to step in.
Sources
- Jeff Bezos. 2015 Letter to Shareholders (Amazon.com, Inc.). Amazon.com, Inc., 2016. In the bibliography
Used alongside it
- Installing a decision process practice
- One-way and two-way doors practice
- Systems understanding over currency practice
- Task-relevant maturity practice
- The executive docket practice
Cite this model
Chicago, BibTeX and licence →Engineering Management Academy. (2026). The intervention threshold. In Engineering Management Academy Body of Knowledge (Version 3.1, TEC.intervention-threshold). https://www.engineeringmanagement.academy/body-of-knowledge/techniques/intervention-threshold