L.A. County Sheriff Alex Villanueva tells hundreds of top staff to hand in résumés and temporarily remove rank insignia

Alex Villanueva began his term as Los Angeles County sheriff by immediately removing 18 top executives.

Now he has told nearly 500 other supervisors on his staff that their jobs are being reevaluated too.

In a massive review, all lieutenants, captains and commanders have been asked to hand in forms…