Mistakes Indie Game Studios Should Avoid
indiegames.com
indiegames.com
9. Letting your love of your work blind you
This is really true in any creative field. Publishers receive manuscripts all the time from authors who demand that nothing in it be changed, some going so far as to claim that it's a product of divine revelation.
For me it's basically "Keep your ego in check. If you can't do that, learn to listen instead of defending"