A task normally takes longer than the time allotted, so it is a good idea to allow buffer time around tasks so that any unexpected work or meeting does not delay the planned completion time.

Assigning buddies/partners in completion of a specific task makes work less mundane while being socially active at the same time.

One way to do it is to work using video cameras but keeping the microphone on mute.

Your system must mimic how your brain searches rather than setting up a new task that you must learn. This way, it will be easy to adopt, adapt and you will continue to use it in the long run. 

You don’t want to spend time thinking about a system and setting it up ...