My job is to sit and wait for emails to come in. I work with a team of 4 other people who are doing the same thing as me. Whether it is to build a job or make edits to a job, we wait. We have all been working together nearly a decade so we have it down a system: we rotate on who takes the work.
So to elaborate we have jobs and edits. Each Job that comes in goes to the person that came in according to when their shift started. Job #1 comes in at 8 or 9 AM. The very first person to arrive for their shift that day takes that Job. Job #2 comes in. The next person who came in takes it. And so on and so forth.
If a person is working on a Job, they do not take Edits. If no one has a Job, we all take turns taking Edits. If everyone has Jobs, then the person who is closest to being done fills in to take Edits, but if they already took an Edit, the next person who might also have a Job would take that Edit.
Is it a perfect system? It works. Sometimes work is doubled up. Sometimes a Job will come in towards the end of a person's shift. They are excused if they only have 3 or 4 hours left in their shift. Sometimes we can get slammed with several Jobs. Like yesterday, having to work July 3. It was slow all day. No one had any Jobs and very few Edits. My coworker called out, and everyone else from the earlier shifts went home early, while I got to "come in" (WFH) later, so I was the only one covering the shift. I got two Jobs, while everyone else got nothing because it was a slow early part of the day, yet busy later on, and there was no one but me working.
Fortunately, there are days where all the Jobs come in for the day and everyone has one and I might not get one that day. We all still get a paycheck regardless of who does more or less work. Sometimes it doesn't seem fair at times, but it usually balances itself out. At the end of the year, they show the tallies for who has done the most jobs. It's me every year. Doesn't change my paycheck or even help with bonuses.
Basically how I think of it is that I am paid to be on call. My company pays me to sit at a computer and be present and aware for 8 hours a day. By the way, I'm a web designer.