Drupal.org provides a number of pre-packaged distributions (e.g., Drupal Commons, DKAN, etc.) that allow users get a fully-featured Drupal installation up and running in no time, but maintaining an installed distribution can be tricky. You may need to juggle distribution updates with contrib module updates, core updates, and your own customizations. If you aren't careful, it can be come a maintenance nightmare!
Problem at hand!
When it comes to building Drupal sites with a team of developers, there's perhaps nothing more important than establishing a productive workflow.