I have one idea and I'm just thinking about pros/cons.
I have a website powered by PHP and need to recreate its admin area. I'm thinking to do that in Wordpress... I mean to install wordpress and plugins for it which will be used to admin the other site. There are several advantages e.g. very easy to create new features (admin pages), admins/roles management (there are more admins already with different privileges needed) and so on.
What do you think about this ? I know there is no exact answer for this but your opinion helps me to get decision.