Hell, there are no rules here - we're trying to accomplish something.
Thomas A. Edison
Rules bound businesses very rarely have the flexibility to accomplish things. The lack of rules is why start up companies can move to get innovative products to market quickly. The best job I have had to date was as the Chief Information Officer/CTO of a medical software company. We were small, fleet of foot and were able to focus on getting things done.
While I recognise that rules are necessary as organisations grow, make sure that the rules help the business. Some people insist on applying rules rigidly and this drives innovators and get it done people mad.
Review and reality check your rules now and release the creativity in your business.