Few companies are able to implement Agile Development across the organization because there exists a chasm between the Application Development team and the Database Administrators.
All too often, database development is an afterthought in Agile Development. Developers perfect how best to implement a solution in code, but tend to spend too little time on representing that solution in the Database. This is unfortunate, given that 65% of your change requests require changes to the application schema, according to independent research conducted by Simon Management Group. This finding implies that Database changes are every bit as important as the Application Code, and should be treated as tier-one artifacts in your release process.