When a global fashion retailer faced the collapse of its legacy BI platform — 27,000 MicroStrategy reports across four business domains, with support expiring in months — the clock was ticking. A 12-month migration roadmap stood between them and a hard deadline. CI&T and Databricks turned that timeline upside down. Using 19 bespoke AI accelerators built on Databricks, CI&T's FLOW delivery model compressed a year of work into 20 weeks — a 61.5% reduction in timeline. GenAI agents analyzed the entire report estate, automated data engineering and QA, and drove a 4x productivity boost on key migration steps. Specs that once took 7.5 days were completed in 2 hours. The result: a modern lakehouse on Databricks and Power BI, 250 self-service reports built independently by business teams, £1.2M in cost avoidance, and a data culture that put insights in the hands of everyone — not just specialists. This is what happens when AI executes, humans guide, and Databricks powers it all.