Definition-- jour·ney·man \-mən\:
a worker, performer, or athlete who is experienced and good but not excellent
In the nomenclature of the game we have many names for the journeyman.
On competitive teams we typically use the more endearing terms: role player, utility man, pinch hitter, defensive replacement. But on a losing team we tend to describe them in less complementary ways: placeholder, seat warmer, has been.