As a workshop leader you have agreed to take on a considerable responsibility. It is important to keep in mind that delegates have signed up for your workshop on the basis of the workshop description that appears in the promotional brochure for the conference. So please do try to cover all the information that delegates expect to receive.
A workshop is intended to be an in-depth examination of an issue that may be the subject of a talk on the main conference program as well. That means that workshops should be very focused and detailed in the information that they give, in order to provide added value to the delegates. Workshops are also meant to be as hands-on and interactive as possible. Delegates appreciate when workshop leaders are able to incorporate exercises, discussion, role-playing, case-study work, etc. into their workshops.