Unfortunately though a lot of managers don't know what to do as you suggest, but some of them can be shown a better way.
Putting some things you want on the agenda is a great way to make that change. Then you can take the temperature to what they will be open to.
Working backwards though, this is why you should interview your future manager really hard before signing on to the job...to make sure you have one of those 25% that are good (based on your number)