The diet needs to be carefully scrutinised to ensure minimal fat gain and maximal muscle growth.Every single kcal you eat needs to be from a healthy source.
On top of that, discipline must be maintained.Sleeping early and getting up early.
You are required to read latest research and nutrition, anatomy of the body and exercise physiology.Incoporating this into your plan would yield optimal results.
Taking all this factors into consideration, many people still say "all brawn no brain" or try to diminish the efforts of these people.It still baffles me how cynical some people's thoughts are.
No i am not talking about myself here.I am talking about those of a professional status in bodybuilding and powerlifting.