In order to integrate the security function with the rest of the organisation, you need to develop a Security Plan. To do this you need to look at the organisation as a whole and 'plan security into it', rather than just looking for solutions to problems. Security should be seen as playing a constructive role in the development and running of an organisation, and involved in all the relevant decision-making processes. This will result in many issues being anticipated and hence future problems avoided. If you leave employees out of the security process then all that is left is a set of procedures and some technology.
Every employee needs to be regarded as a potential security officer.
A Security Plan will help you to achieve this.