If you are pushing gradually/continuously for progressive overload in weights, pushing for improved cardiovascular endurance, pushing for intensity in your workouts (where intensity can be provided by changes in weight loads, speed, number of reps, higher impact, increase in overall work volume, decrease in rests during workout), then I have found, personally, that it doesn't matter which individual workouts I choose.
I don't follow rotations. I pick a DVD/workout each week or each day based on what I want to focus on right now (where 'right now' could be a time period of unspecified length, or, basically, as long as my interest in a particular objective lasts) and based on how I feel physically and mood-wise.
I doubt you will ever be dis-organized or schedule workouts that are all over the map. Once you have been working out for a while, say 6 months, you start to realize your strengths and some of your weaknesses. From there, you'll start forming ideas of what you would like to improve upon --heavier squats, mastering the push up in different modalities, improving your muscle power through plyo workouts, getting a stronger core, etc, etc, you decide!-- and then, even if you don't map it out exactly, because I never do, you find a general ordering in your workouts decisions starting to happen based on helping you towards mastering that goal. Then, you either master it, improve enough or get bored and decide to change up your focus again and tailor your workouts accordingly. Personally, I find myself doing this in a largely unconscious, loose fashion. This suits my personality, but others would view it as hopelessly disorganized, lacking in focus and hate it!
It all depends upon your personality really.
Overall, though, I gotta say that the number 1 factor that decides physical changes and improvements has to be consistency in your workouts and enjoyment. Bear in mind that some people will train glutes, for example, for 2-3 years with incredible and intense focus before they start seeing the aesthetics they are after. Changing your shape through weight training is a slow, accumulative process. Just keep challenging yourself and you'll get there.
Clare