Change for the sake of change is never advisable. All change should be rooted in some obvious reality that requires a shift in the status quo. When you have something that is working stick with it. This doesn’t mean you run it to the ground, but also doesn’t mean you abandon it too soon either. In general, there are usually more things that are right rather than wrong with an organization unless of course it’s a crisis situation. There should be many positives you can lean on and leverage for both short and long term benefit.