Today, the formation of the personnel potential of the pedagogical educational system is characterized in terms of "double negative selection" when not the best school graduates go to the pedagogical institute and not the best graduates of the institute go to the educational system. The presented contradiction has determined the goal of the study: to develop a model of the individual trajectory of student training to improve the quality of the graduate of the pedagogical profile based on the development of its substantial and level characteristics and a correlation analysis between the quality of the entrant and the graduate of the pedagogical institute. The experiment was conducted among (n = 328) full-time students who completed their studies at the Pedagogical Institute in 2017-2019. Based on the development of monitoring the quality of formation of a student -- a future teacher, it has been proved that a high score of the Unified State Examination by an applicant is not always an indicator of the high quality of a graduate for the educational system in the future. On the basis of the author's model, the study has substantiated the position that the concept of selection of pedagogical institutes and the quality of professional training of a future teacher should reflect the tendency to move from standardization to individualization of the process at all levels of "enrollee-student-beginner teacher". In practical terms, the introduction of the author's model will individualize vocational training and reduce the lack of "quality" teaching staff in the system of general and additional education.