The role of the coach is to create a specific agenda, split the task into manageable sub-tasks which have clear skill components and look at the different ways a person can learn them.
In a nutshell, Separation of Duties simply means that security requires that we split responsibilities for different facets of a task across multiple individuals.
The task of delivering a satisfactory service is complicated by the split between track and train operations with both sides blaming one another for poor performance.
Conservationists working in a new branch of the library still face the task of removing ash deposits between pages, repairing parchment volumes and vellum spines that split in the fierce heat a painstaking process that involves weeks of work on each book.