Conceptual and organisation question between Frontend and Backend

[eluser]Référencement Google[/eluser]
Hi,

I would like to discuss about how is the best way to organize things and if you can tell me if the way I am doing things is good or if we can do better.

I actually organize the controllers between admin and frontend like that:

Code:

/Controllers
+- /admin
|  |- rates.php
|  |- page.php
|  |- gallery.php
|- rates.php
|- page.php
|- contact.php
|- gallery.php

As you can see, I have the same name of controllers for the frontend and backend, and each of them do a different job. All controllers (both front and back) are extending a MY_Controller library.

Is my way to organise things is good, or do you advice me to do things differently ?