Tasks I am a team member of

For our project tasks we have a custom field called task team - The idea being that many of our tasks are not done in a bubble; rather there is a team assigned to completion. The way we handle this is to assign the task to one person (the task lead and one responsible for updating task status) and then a cusom field with data type of users.  Within this field we assign the team.

What I would like to do is create a dashboard widget that can be shared with the rest of my team that allows them to see the tasks for which they are a part of the team.  When I check the current user box (or any other box) it is unable to find any users. 

If I find the correct combination of users it does return results so it seems that it is unable to look through the list of users in that field and see if the current user is in that list.  Has anyone else set this up?