A company admin can edit user name and company admin role on a user.

Click "Edit" on the user.

https://s3-us-west-2.amazonaws.com/secure.notion-static.com/c86b39e9-3044-40a1-b4ef-64be00914d32/image2017-3-23_15-31-47.png

Edit user details

https://s3-us-west-2.amazonaws.com/secure.notion-static.com/140cc7d4-9de3-4eb2-b579-7a187f330533/image2017-3-23_15-34-25.png