EG: Yearn Finance does one week long epochs at the end of each month where the allocations are meant to cover the entire months work.Some DAO's who have been in operation for a while and are wanting to "Catch up" on contributions may choose to do a short Epoch to allocate for all work done in prior periods
Recency Bias: Members tend to allocate based on their recent experiences. If your Epochs are too long, members may forget about work completed at the beginning of the Epoch.
Process Fatigue: Every Epoch requires your team to record contributions and allocate them to team members. If you have a large circle, the frequent allocation could lead to burnout.