Definition: In this task, you need to generate an appropriate title for the given summary of some paragraph. The generated title must be short and should include the main topic of the given text. Your summary should be less than 20 words long.
Input: On a mild Tuesday in early September, after 13 months working at the most famous address in British politics, Dominic Cummings left Downing Street.

Civil service shake-up: Rewiring the government machine or blowing a fuse?