Silos, and 'every team is a data team and a business team'
The data team deleted the dashboard nobody used. One team was running the business off it.
Business teams hand over broad questions without caring how data is captured; data teams optimise for perfection rather than a decision. Named pitfalls: gut-based decisions despite models, dashboards deleted as unused, simple requests stretching from days to months, two sources of truth, detailed dashboards nobody opens. The fix is mindset, not tooling: every function handles its own data and owns business outcomes. The challenge is too much data, not complex methods.
Diagnoses why analytics fails in most companies before any technique is taught.