This feature is available in Catalyst, Enterprise, and Ultimate editions.
By default, the My Work page displays all of the work assigned to you. If you want to see another member's work you can use the Owners field to select another name.
Selecting Another Team Member/Owner
Select My Home > My Views > My Work.
In the Owners field, type the first few letters of a member's name. The more characters you type, the more refined the results become.