Lisa McNamara has written an article with the help of Zack Arnold ACE on the Best practices for Adopting a Remote Post-Production Workflow at Frame.io, and it is well worth a read. It goes into the challenges and security concerns, managing media, communication, collaboration, and even morale, well being and sanity. It is of course also selling Frame.io, but it is an article by them, and the article is great and very in depth including other companies solutions.
Every post supervisor or producer overseeing a team working from home should read this article.