As a Premier Field Engineer for Microsoft who specializes in Exchange, Dan Erelis deals with many different customer environments in just about every major industry sector. Although every customer is different, the same recurring challenge to implementing Microsoft Exchange disaster recovery exists across most of his customer base, which is that they don’t always know the implications of what they're asking for. Check out his post on how MOF (the Microsoft Operations Framework) plays a role to help define these requirements for Exchange disaster recovery at http://www.opsvault.com/planning-ms-exchange-disaster-recovery-using-the-microsoft-operations-framework-mof/.