"An army travels on its stomach" is a pithy way of saying that logistics are important. The visible part of any enterprise is supported by a much larger structure of people doing incredibly vital jobs, without which the shiny stuff never happens. Watch a movie's credits; the drivers and key grips and effects artists outnumber the "stars" by a couple of orders of magnitude, and without their efforts, the damn thing just doesn't happen.
And the same goes for sports teams. There's an entire structure underpinning the nine guys standing on a baseball diamond at any given moment. There's coaches, and clubhouse staff and grounds crew and traveling secretaries and bus drivers and ticket takers and a million other folks.