Bain & Company offers a fairly interesting video on the role of culture and its integration. Worth checking out. Three minutes. There is also a short write-up on the topic available via the same link (below).
From the Bain article: Culture clashes commonly cause failed mergers, yet few organizations apply the same rigor to managing and steering cultural integration that they apply to creating conventional, hard-dollar synergies.
Photo: Dealmaker, Portobello Road