Deborah:

If your first love is education, the corporate foundation will not get
you there.  However, you might be in an ideal position to foster and
facilitate the development of  collaborative education projects between
museums or museums and performing arts, etc. This would assume you are
in a city with multiple museums. I'm thinking of Minneapolis/St. Paul.

The corporate foundation position would never be a strike against you
getting an education position. I guess you have to assess the
opportunity to see if it will give you a chance to take on  challenge
and prove what you can so. That is good for any job change.
Good luck

Maureen Daly
Wm F. Eisner Advertising & Design Museum