Need to Display only the User's First and Last Name

Hi All,

I have setup a TFS 2013 environment in Windows 2012 Server., where by default the users name is getting displayed  with the company names and their location. Instead we need only the First and Last names to be displayed of the users.

As investigated there should be an option for editing those details within the TFS Application but could not find it.

Can you help me on the above tasks ???