I facilitated a session a few weeks ago where some participants talked about the need to replace the "old guard" with some new faces and fresh thinking.
It's a common concern and a common expression. No doubt for even the most dedicated of lifelong learners there is an expiration date on the value of their tenure in a particular role.
But remember, just because you're changing the guard doesn't mean you necessarily want to change what they were guarding.
People and programs will come and go.
When recruiting new leadership be sure to explore their commitment to the purpose and principles you want to preserve, as well as their ideas for new ways to amplify them in the programs and practices they want to pursue.