The purpose of the study was to determine and model the national coaches' selection in swimming, diving and water polo. Coaches (Swimming, diving and water polo) responded to a questionnaire consisting of two parts, a: personal characteristics and b: 64 variables gathered from the literature. Principal component analysis of two data sets yielded eight main domains in coaching. The priorities were determined by Freidman Test as follows: Humanities factors, characters criteria, Technical skills, Social factors, Managerial skills, related experiences, Personal characteristics, and related sport abilities. Kruskal – wallis test indicated: no significant differences among swimming, diving and water polo coaches opinion about the priorities of the main domains. (R=0.086), the preference of the subgroups' characters criteria. (R=0.637), significant differences among swimming, diving and water polo coaches' opinions about the preference of the subgroups' social factors (R=0.015), the preference of the subgroups' humanities factors. (R=0.024), the preference of the subgroups' technical skills. (R=0.311), the preference of the subgroups' managerial skills.