We have a rotating schedule of daily primary and backup planners who handle non-project related questions (email, phone, and counter) as well as basic building permit review (thing reviewing building permits that don’t require separate land use approval). We don’t formally assign tasks, but in my experience the primary and backup planners will discuss how they want to operate. So the primary will handle most of the questions and counter work, and the backup will do the permit review tasks. Typically, my planners will prefer one or the other, so when I schedule them I try my best to take this into consideration, but it doesn’t always work. Also, sometimes it can get tough just because of the randomness of it all. Typically there are a lot of random questions to answer, but each one takes considerably less time to answer, while building permit reviews can take quite a bit longer, but there are typically quite a few less, but sometimes our lovely building staff puts twenty permits in line for review in a day, or somebody is calling in because he wants to rebuild his damaged home located in floodway in the middle of a swamp and that question can take five days to get everyone in a room to answer it, and repeated return calls to get clarification.
In terms of actual land use permits, by policy they are expected to be rotated among staff qualified to review them. So think Planner Is generally review basic sign permits, home occupation permits, and basic BLAs, Planner IIs review BLAs, site plan review permits not requiring notice or a public hearing, and some basic conditional use permits requiring public notice, but no hearing, and can also review lower level permits typically reviewed by Planner Is based on workload and need, etc. I will admit, I try to rotate them equally, but there are definitely cases I assign to specific planners because of an interest in that case, or because of their expertise in that case type.