The IT world is a complex space and companies may not have the money to completely replace all of their systems. Therefore, the authors need solutions to optimize what they already have. This white paper examines the differences between Greenfield and Brownfield environments - particularly as it pertains to cloud migrations. As cloud computing gains more ground, early-adopters that are moving their infrastructure into the cloud are achieving cost savings and improved access to IT systems. The migration of server workloads from on-premise environments (physical or virtual) to the cloud is a key driver of technology spending.