Organized & Detailed - As a consultant that has had to work with an overwhelming amount of data, I've learned that data itself means nothing. You've got to be detail oriented to have the right data, then use that data to make decisions and execute actions that will drive the change you want.
Systematic - With that in mind my approach is very simple. I identify the goal, collect the data, analyze the data, organize and prioritize the data, develop action plans and roadmaps, roll up my sleeves and work, review the work, and then finally improve upon my work.
My approach listed above is similar to the famous quality concept, Plan Do Check Act. I like my acronym for it better though: ICAODRRI, it's more fun to say.