Send us Fan Mail If your case framework doesn't pass the toothbrush test, it's too generic for McKinsey, Bain, and BCG. Ex-Bain coach Abi Chen walks through the toothbrush test, the 3 mistakes that cost most candidates their offer, and the 4-step process to build strong frameworks. Finally, she walks through two full framework examples – an M&A case and a pharma product launch. Resources: If your frameworks keep failing the toothbrush test, Black Belt is how you fix the processWant to bui...