One of the four duty shifts of junior officers aboard the USS Cerritos, whose ensigns compete with Mariner, Boimler, Tendi and Rutherford of Beta Shift for better quarters.
Delta Shift is the watch that works while most of the Cerritos sleeps. Its lower-deck ensigns bunk in the same corridor as Beta Shift at different hours, and the two groups know each other mostly by reputation.
The shift is the foil of Room for Growth. When a lottery for private quarters is announced, ensigns Karavitus and Asif and their friends plan to tamper with the terminal that runs the draw. The Beta Shift ensigns overhear them and race through the ship's service spaces to get there first.
At the terminal the two groups find only one room is on offer. Beta Shift withdraws rather than be split up, and Delta Shift takes the prize, cheerfully agreeing to share it.