Security policies for your security gears
Security gears today including firewalls, IDS/IPS and IDMs are key components of Information security department however, it is a common observation that these network gears were inherited from another team or a predecessor and happens to have no common policy. The benefit of having a policy for these security gears is - scalability.
The more the need for firewalls, the lesser the problem it would be if you have consistent policies - it is easy to push the same policy accross to newer locations and thus policy is a must.