You try and find out more about why Mike wants to leave.

How would you deal with the following responses?

1. He feels 'burnt out' and just can't continue with it any more
   
   
2. He's started to believe that people who are being negative about the project are probably right
   
   
3. He has lost faith in your ability to manage the project
   
   
4. He says he can't see the value of what he is doing