In the context of a work container which includes a set of atomic tasks to be executed in some order, along with a specification of the role/skill needed for each task, the estimated effort and due date, methods and arrangements for pooling unutilized capacities of multiple resources whenever possible, and making adjustments to the estimated effort to take transactional costs into account. More particularly, preferred embodiments of the invention operate on a principle that if resources do not individually have the available bandwidth needed to execute and complete an atomic task during a given period then, collectively, the time available on their calendars, when pooled together and aggregated in sequence, may well be more than sufficient for the task, even after making adjustments to account for transaction costs.