The Coach Ing model, applied to professionals in the engineering field, continues to be enriched through training experiments. After a careful evaluation of the results of the Coach-Ing path [1], this paper shows the results of a further experimentation performed in SAPIENZA — University of Rome. The experimentation was focused on the identification of a numerical evaluation technique of the skill level acquired by the students participating in the program. This was achieved through the guided validation of the set of 16 reference skills defined by the Coach-Ing model. During the training process a double level activity was carried out: on the one hand, the participants were taught about the possible working scenarios to which they could orientate themselves and, at the same time, assessed the personal strategies — observation and evaluation of the 16 parameters — more coherent to effectively propose itself in different working contexts. Further two steps (a unconventional final exam and a follow-up on the interview) integrated the students' training path and at the same time enriched the Coach-ing model with further reference indicators with communicative-relational indicators. The results of the complete experimentation confirm that the Coach-Ing model has excellent performances as a methodological lever within the training path. Moreover, the use of Mentor-Ing techniques allows to accompany the participants in the consolidation of the acquired skills.