Judge Lina Hidalgo announced Friday the decision by her chief of staff, Alex Triantaphyllis, to depart from his current role in early 2023 “to pursue a new opportunity.” Hidalgo’s office said Triantaphyllis, who was one of three staffers indicted in March in an $11 million COVID-19 outreach contract investigation, will continue his public service in a new role in the Harris County Office of County Administration.