During the episode "Time's Arrow", six senior officers are trapped in the 19th century for several days: La Forge, Troi, Crusher, Picard, Riker, and Data. The latter three are the captain, second-, and third-in-command. Who was in command of the Enterprise while they were on this mission? Was it Worf?
If so, who was in command during the short period of time between when Picard beamed down to the surface of Devidia II and when he ordered Worf to return to the ship? Ro Laren?