3 states of work: scheduled, waiting, assigned to me

There are three "states" of work: scheduled, waiting, and  assigned to me.

'Scheduled' (GREEN) is stuff that has an almost 100% probability of occurring like meetings and scheduled appointments.  You SHOULDN'T have to act unless things don't go as planned.

'Waiting' (YELLOW) is stuff for which you are waiting for a response or answer from someone on something; you have requested something but there is no commitment or response yet.  You MIGHT need to follow up to make sure that action is taken.

'Assigned to me' (RED) are the tasks that you own, that you need to do, where you are/might be blocking; they are your queue or backlog.  You WILL need to act to make things go.