This simple plugin changes the user based permalink slug 『author』 to anything you wish.
For example, you have an e-learning management system where different members teach on different topics. Each member has his/her unique profile url (author permalink) something like this: http://nazmulahsan.me/author/admin
Now you wish the word 『author』 to be changed to 『teacher』. So, this is the plugin you need.
