Intervention, quick or right?
When you start to look at the time line to correct the issues you have identified don’t fall into the trap of wanting to get it done now. You did not develop your problems overnight and by the same token you should not expect them to go away immediately. Project management consulting services will help you develop a schedule to address the issues. Be reasonable in the time line. You want the changes to not only work but be permanent. Old habits may die slow so give you and your team time to use the new ones and the evaluate their effectiveness.