Business Architecture is never as critical as during times of great change. Great change shifts the very enterprise structures on which we usually rely to manage most other change. It can alter organizational structures, such as during mergers, acquisitions, joint ventures, and restructurings. It can alter process structures, such as during major system implementations, corporate initiatives, and regulatory imperatives. While times of sweeping change are unavoidable, the quality and speed with which we manage change determines our success.