I would like to suggest a tremendously simple (4) : Every day, each employee spends no more than 5 minutes reporting what they did the prior day, and what they are planning to work on that day. If they're blocked by anything, they can mention that and ask for assistance.

I just finished working on a fully remote contract that worked that way, every day at noon there was a conference call that never took longer than 15 minutes. It worked great. A couple manager types were on the call, and they'd share any developments on the contract side of things, feedback from the customer, things like that, but mostly they just listened and took note of potential issues and made sure they got resolved (so like if you mentioned a problem one day then didn't the next, they'd ask if it got dealt with).