Some years ago (after overbearing massive resistances within the team) I've successfully changed the Version Control System from VSS to SVN. My conclusion is: Who don't want to use SVN (in this case the reason is: it's not Microsoft) does all to discredit the system. They work with local copies and branches in a way they would never do with TFS and cries that nothing will work in SVN. Maximilien is right: The best version control system is useless if inner resistances of some team members prevent them from learning.