In this episode of the Databricks Diaries, Daniel is joined by James Blagg, a seasoned Chief Data Officer with over 25 years of experience leading data strategy, architecture, and modernisation programmes across financial services.

James shares hard-won lessons from a career that spans the 2008 financial crisis, the big data hype cycle, the move from Teradata appliances to cloud-native platforms, and now the AI wave. It's a candid conversation about what actually drives value in data — and the gap between vendor promises and operational reality.

What's covered:

• James's career journey from Oracle PL/SQL developer to CDO
• Leading BI teams at Lloyds through the financial crisis and the HBOS integration
• Nationwide's data simplification programme and the "almost cloud" Teradata investment
• How platform evaluation has changed — and why cost, skills, and relationships now matter more than features
• Why "it's on the roadmap" is the most dangerous phrase in vendor selection
• The MVP hypothesis approach to picking analytics use cases
• Why so many data warehouse projects are perceived as failures (and why metadata investment is finally fixing it)
• Where AI really sits on the maturity curve — and why financial services is 10–15 years away from full back-office adoption
• A practical playbook for governance, cost monitoring, and security guardrails before scaling AI on Databricks
• The truth about cloud consumption pricing and reserved pricing deals