While there are a lot of things you can change in Adobe Lightroom 5.0 I have found that when the image is properly shot, the workflow in this article is pretty much what I follow. That does not mean that further enhancements such as presets, Nik plugins by Google, MacPhun programs, PhotoNinja, and many more.
My favorites, being a Mac user are the programs from MacPhun. After that I like Nik Plugins, and for pre processing before Lightroom is PhotoNinja.
With all of the above providing wonderful enhancements, the workflow in the article can be the beginning and the end. All the rest is simply ice cream on the apple pie.