What is a Workstream? And What is a Workstream Leader?

The video tutorial explains the concept of workstreams, which are not covered in major project management guides like PMBOK or Prince 2. Workstreams can be visualized on Gantt charts as streams of activities or as parts of a Work Breakdown Structure (WBS). Each workstream is led by a workstream leader. The tutorial provides a definition of workstreams as subsets of WBS allocated to a single manager.

What is the role of a work stream leader?

In what ways can a work stream be constructed according to the text?