Well, I kind of agree with you at some level, but it depends on how deep you go and how detailed the plan is. If one can follow the plan step by step and when y

Well, I kind of agree with you at some level, but it depends on how deep you go and how detailed the plan is. If one can follow the plan step by step and when you are finished, it's a success then maybe, but according to my experience that's not the case and you always have to revisit and fine tune along the way and it's in this process one learns the right way, not at the start. And one does not need consultants for this.