The expression 'has one's fingers in many pies' perfectly describes how she manages multiple departments.

When the committee tried to rewrite the policy together, too many cooks spoil the broth, and we ended up with a muddled document.

When the garden needed clearing, I reminded my neighbors that many hands make light work, and we finished in an afternoon.

We had rehearsed everything for weeks, but there's many a slip twixt cup and lip when the day finally arrived.

If one wants to specialize, one should not have one's fingers in many pies.

At the international conference, I asked her, "how many languages do you speak?" because I was curious about her background.

Before advising others on life choices, you should know how many beans make five.

At the family reunion, I asked my cousin, "how many siblings do you have," because we were trying to map our family tree.

When the project was celebrated, everyone lined up to take credit — success has many fathers, failure is an orphan — but when things went wrong, no one wanted to be held responsible.

Her manysidedness makes her a valuable member of the research team.