Solo Tax Function Experience?

Ed. note: A reader sent this question in via tips@goingconcern.com.
Hi, are any of you in solo tax functions or have been in one?
What is/was the experience like?  What did you lose or gain in a position like that?
Did you ever manage to grow the function? If so, how?
In a solo role now and wanted benchmark. Realistically not expecting the function to grow until another year or so as I plant seeds of the every growing need of the function… For me, I’m using this as a stepping stone to move to a director level role in the next 5 years (whether here or in another jump).