While raising Talmidim who are great in learning Nigle and Chassidus – the primary mission should be raising בעלי מסירות נפש for Ahavas Hashem, Ahavas HaTorah, and Ahavas Yisroel, and דוקא bringing to concrete actions.
(Igros Kodesh Vol. 18, pg. 168)
At MLTL we define personal success in the Rebbe’s terms. The Rebbe writes in the above quoted letter, and in other places that although Yeshivas are meant to be places of academic learning, producing Rabonim, Shochtim, and other professions involved in Inyonei Kodesh, that is not the main purpose. The Rebbe writes that the main goal is to prepare all Yidden – some of whom will be Baalei Batim, business people, as well as Rabbonim, etc. – that before they go out to the world, they should first become permeated with Torah and Yiras Shomayim. And as a result, later when they are involved in the world, they will raise up all their surroundings by influencing the Jews around them with Ahavas Hashem, Ahavas HaTorah, and Ahavas Yisroel, in day to day life.
This is achieved by focusing on the child’s total Yeshiva life, from Academic progress, to social interactions, to health and happiness.
The common thread that will connect all the experiences of your son throughout his years in Yeshiva will be the goal of overall Personal Success – what we call Leadership. Leadership comes from communicating to each Bochur his worth and potential so clearly that he is inspired to see it in himself. And that Leadership attitude is brought out in each Bochur regarding everyone else. In other words, he is a leader when he helps his peers see the greatness in themselves. . His progress in all areas will be measured in those terms. The measuring stick for success will be his ability to influence his surroundings in a positive way, while being strong not to absorb negative influences from the environments he may find himself in throughout his life. See here for more at length on how this is achieved.