Active Management of Workload

Management

Are we constantly checking if our staff are coping well with their workload?
Do we 'take out' when we 'add'? Or is 'adding' an enhancement of their capability? How do we avoid burnt out?
How do we manage the mindset of staff who 'only want to teach' and have negative reaction towards administrative or project work groups?
As much as distribution of workload is based on ability and cannot be equal, how can we ensure that capable staff are not overloaded?