The trouble is that you actually do need some of this flexibility in the procurement process. If your department needs Photoshop, you don't want some goofy non-

The trouble is that you actually do need some of this flexibility in the procurement process. If your department needs Photoshop, you don't want some goofy non-technical auditor telling you that he googled around and thinks GIMP will do just fine. Or you want one particular contractor because just last year they did an amazing job on something that was pretty much exactly what you need.