True. Even a Liberty Launch takes a crew of three. Coxun, Bow Hook {Bosun aka driver} and an Engineman. That boat likely had at least two Gunner-mates, a Coxun, and engineman, and junior grade officer.
My question would be was the breakdown a result of maintenance deferred due to lack of funds, parts, or time due to not enough relief boats to rotate for maintenance.
Coxun is driver alao a Bosun. Bowhook position is a Bosun who does deck work.