Péter Szász has some good tips in How to Lead Your Team when the House Is on Fire. The article is about managing a team while a company is in “war time” , but many of these are just universally good practices—such as this one:

Protect the team’s focus time. The chaos and uncertainties of wartime can be incredibly distracting. Set up processes to shield the team from constant interruptions so they can have deep, creative work sessions. Remove them from low-value meetings and relieve them from monotonous administrative duties. One effective technique is to establish a rotating “firefighter” role to singlehandedly deal with any incoming requests, represent the team in meetings, and handle the necessary amount of bureaucracy, allowing the rest to stay heads-down on the critical priorities.