If you have admin rights then you can perform, the below steps to reassign a workflow.
Navigate to Administration > Security > Users.
- In the corresponding row for the User whose workflow items you want to reassign, click the user's name. The user's profile page is displayed.
- From the Assignments panel, open the Edit panel by clicking the name of the assignment that you want to address.
- To reassign all items on the page, select the check box in the header row, then click Bulk Reassign.
- To reassign some, but not all of the listed items, select the box to the left of the items that you want to respond to, then click Bulk Reassign.