Simply put, getting bigger/stronger/leaner is all about balance. It is about balancing the proper volume/frequency/intensity in the gym, and then supporting it with the proper nutrition/supplementation, and not short circuiting it with faulty sleep habits, or excessive stress levels.

If the goal is to gain 10-15 lbs as absolutely fast as possible how would it best be accomplished? Probably the quickest way to do it would be working out all bodyparts twice a week doing 16 or so sets a bodypart, using low intensity, for sets of 10-12 reps. Add a bit of creatine and taurine, keep carb levels high, with perfect PWO nutrition, and, (this is the big and) IF you haven’t been training this way, you will likely be up 10, perhaps even 15 lbs of something that “looks” like muscle…….Let me explain that statement.

Coleman has used the same workout schedule through his career, but in order to use all his favourite exercises, consecutive muscle group workouts are not the same.  These are Coleman's standard exercises, but some movements may be different per workout.

Ronnie Coleman's workout routine.