Professional texts and lectures on human resources often contain calls for changes in company culture. But if you want any changes you implement to be long-term and sustainable, it is necessary they be properly incorporated in the company culture, which is a sort of a code of the relationship between a company and its employees. If you do decide your company culture needs change, what are the actual steps you should take as an HR manager? How should you intervene so as to remedy the relationship between employer and employees when it comes to old rules which have remained unchanged for years? Here are five steps on how to realise changes in your company culture so that they will be effective and long-lasting.