The container ship was being piloted by local pilots at the time of the collision, not its own crew, according to CNN. Local pilots, who are familiar with the harbor, are used to move cargo ships out to open water in hopes of avoiding accidents.
Also: The Singapore-flagged ship, called DALI is chartered by the Danish shipping company Maersk, the company told CNN. The ship was carrying Maersk customers’ cargo, according to the company, and was on its way to Sri Lanka from the Baltimore Harbor.
https://www.dailywire.com/news/8-people-were-on-baltimore-bridge-at-time-of-collapse-ship-issued-a-mayday-before-collision-authorities
Dali sister ship: MV Cezanne:
https://www.vesselfinder.com/vessels/details/9697416
https://www.marinetraffic.com/en/photos/of/ships/shipid:5481513/shipname:CEZANNE?order=date_uploaded
See: https://www.marinetraffic.com/getPhoto/?photo_id=4950293&photo_size=800
MV Cezanne appears to have a single rudder. Ship, when light and high in the water - the single prop is more effective at performing the "prop walk" to port, when ship is in Reverse.