Controller structure

[eluser]xwero[/eluser]
Why not create a controllers/admin.php file as a landing page en put all you other admin controllers in the admin directory. You could do the same for A2. your file structure would look like this

Code:

controllers
  admin.php
  admin
    A.php
    A
      A2.php
    B.php
    C.php

But i wouldn't recommend to create your file structure after your navigation structure. What if you change the navigation? Are you going to change your file structure and/or controller and method names as well?
Create a file structure and name controller/methods in a manner you find best maintainable. If it happens to be like the navigation structure fine, if it doesn't use routing.