It is important for an organization to recognize business environment precisely and to act together under changing environment. We build a computer simulation model to demonstrate how individuals in an organization recognizes and transfers the change of environment and leads to the environment recognition as an entire organization. The proposed model begins with the state which all the agents share a common view of the business environment. Then we observe how their recognition changes when they face new one by changing who notices such a change, strength of the organizational inertia, networks of informal communication, and the degree of 'Top Down' communication flow. Regular personnel reshuffle system is also performed on the model. Major findings are as follows 1) Optimum organizational structure is contingent upon who recognizes the environment. 2) Personnel decision of who and when to transfer, has much more impact than existence of regular personnel reshuffle system.