Before and on January 6th Pittman was Assistant Chief of Police for Protective and Intelligence Operations. She was appointed Acting Chief on January 11th after Chief Sund resigned.
Taken altogether, this no confidence vote takes (or tries to) accountability from the three high-level symbols, all of who have resigned, down to the "leaders" who actually were directly in charge of the response.
Acting Chief Pittman is a PC minority, so don't be surprised if race-baiting ensues, whether from her or just the usual-suspect activists.