Like it or not, M&A deals are driven primarily by the financial metrics and if the numbers look attractive, there is an inclination to go ahead with the deal. The classic case in point is the merger of Daimler AG and Chrysler where the synergy benefits were never realized due to cultural mismatch. Culture must be a focus in efforts to integrate companies and this requires a mindset shift of the external advisors, management of target and parent companies. When left to itself, culture will often undermine value-creation.