But that's not how it's currently done (at least I don't think and nobody in the comments or article is suggesting so), and escalation in severity doesn't have anything to do with officers or with how efficient you are with officer time.
But if the order stated by OP is accurate, they're not ordered by the officer who needs to show up, they're ordered by severity. Severity might correlate by officer, but probably won't.
According to the schedule, Officer A must be present at 8am, 930am, 1005am, 142pm, 315pm for their relevant cases.
Officer B must be present at 803am, 922am, etc through 4pm.
You've now got two officers effectively locked up for a full day.
Vs: Officer A cases, 8-12p Officer B cases, 1-4p