Turnover
From Tardis Wiki, the free Doctor Who reference
Due to high employee turnover, a majority of those who worked at Torchwood One in 2008 had not been there three years prior. (AUDIO: Locker 15)
Citing the high turnover rate at Torchwood, Anne Hartman noted that she could not be expected to know anyone's names when she called in to speak to Yvonne. (AUDIO: The Rockery)
