It seems that individuals that perform any kind of activity and especially resistance training are mislead with muscle soreness which is wrong translated with an effective training regime. Muscle soreness doesn't have to do with an effective program.... that's a true fact.
Whatever is your training goal, that's what your training regime should focus. Getting sore from a workout does not mean that you executed a well planned program. Muscle soreness is associated with heavy weight loading of an exercise or high volume...doing a lot of exercises of example or it can be from a new set of exercises tried for the first time. I will admit that muscle soreness can be beneficial if you are aiming for muscle hypertrophy, but if thats not the case you better think twice. Don't forget the other key elements of an effective exercise regime.
On the other hand, an effective training program should focus on training goals where the technique is kept in an optimal form and each exercise performed has always a reason why it is performed.
I hope you figured out my point....it all depends on your goal, but make sure that you know the why you perform each individual exercise. I'm out.....