Maybe sometimes "κάνω (καλά) τα κουμάντα μου" - which has also to do with ships.
We run a tight ship and keep within our means every year. = Κάνουμε (καλά) τα κουμάντα μας ...
But
He runs a tight ship - no drinking, no drugs, no chatting up girls on set = Τους έχει όλους στην τσίτα/Τους έχει...