Hey @Wendy_Morden, welcome to the Asana Community Forum
Here is what I would do:
- Use the advanced search to find tasks assigned to the person due within the next 7 days:
Now you can filter this more if let’s say you only want to assign tasks assigned to a person in a specific project, with a specific tag.
- Then on the search results they are displayed in list view, then you can bulk-edit (How to is explained here
Then you can easily edit the assignee for example
Hope that helps!