be all things to all people

US /bi ɔl θɪŋz tu ɔl ˈpiːpl/
UK /bi ɔl θɪŋz tu ɔl ˈpiːpl/
"be all things to all people" picture
1.

to try to please everyone, often resulting in not pleasing anyone well

:
A good leader cannot be all things to all people; they must make tough decisions.
In trying to be all things to all people, the new policy ended up satisfying no one.