The phrase "bench position" typically refers to being placed on a team's bench or being a substitute player instead of participating in the game actively.
Shadow equalities minister Sarah Champion has resigned from the front bench position following a... (totalpolitics.com)
and he always seems to get a nod in the team in any position, like RW and CM even if better players are fit and just chilling on the bench (justarsenal.com)
CAP Standard Folding Weight Bench w / Leg Extension The Folding Weight Bench is a space saving, multi-purpose bench that includes incline, decline and flat bench positions as well as a leg lift feature. (muscle-fitness-training.com)