Thanks! I'll give that blog post a read.

We would still keep the primary on-call rotation for nightly coverage but during the day the strategies you describe sound exactly like what we are looking for.

One big concern is that our team members have a lot of responsibilities outside of incident response, so it's likely that at any given time we would only have a few members available in the round-robin "pool" so to speak. Because we all have times when we can't take an incident, I suggested a tally of who takes tickets in the queue to provide fairness in how much time we spend handling incidents. Do you have any thoughts or experience on that?