Why are policy changes so difficult for police agencies to accomplish?

The text states that policy change is both desirable and imminent, but why is difficult to accomplish? The rationale for the policy change is what is often hard for the officers to understand. This is due partly to the lack of input the officers have in suggesting changes to policy. I think a lot of confusion about changes in policy and resistance towards it could be alleviated with proper communication within the department. For example, making all levels of officers feel involved in changes by some message center within the precinct that everybody has access to and letting even the beat officers know when changes of policy are being considered may make them feel like they have some input. I think letting the immediate supervisors represent the officers is a great idea. I am not in favor of the utopian style voting method, but I do believe the quality circles would benefit the individuals mostly affected by policy changes. Lastly, the implementation of policy changes needs to be done in a way that all levels of employees understand what the new policy is and what is expected from them so they may perform their job correctly.