pivotman

Alternative forms

 * pivot man

Etymology
From.

Noun

 * 1)  A pivot; the soldier around whom a body of troops wheels.
 * 2)  A player in a central position.
 * 3)  A central or key person; someone around whom a particular project etc. rotates.
 * 1)  A central or key person; someone around whom a particular project etc. rotates.