Is there a way to delete a position? My team is 8 v 8 and I have an extra position showing.
This feature is now available in the latest release. Please visit the Windows Store to update your application to the latest version.
There is not currently a method [through the application] of deleting positions, but this is included in the next release, which should be coming soon.
If you'd like to delete a position by hand, you can submit a support ticket and I can walk you through the process. Otherwise, in the mean time, you can inactivate the position for the game and it will not show up at game time.