They will when new chief is named. Depending on who, most will go. New chief will pick his own deputies. Their will be an administrative drane. All Majors and above under old contract, 25 years of police service or more can retire any age. Know most of them, already planning. The change will also allow new chief to move department in the direction he plans with little resistance. The problem,  outsider from the mainland not familiar with local politics, multicultural community, and a force that has been leader less, with young captains aligning themselves up with local potential chiefs prospects. The TSA method from outsiders " one size fits all ".