I think that if you want to have a more diverse team for a career college, one needs to review your recruiting area. It would serve you well to look for a variety of people, some who may be older, perhaps former teacher or counselors. They understand the language needed to get you access to some high schools.
You must also consider culturally, is there a representation of all areas on your team. In career schools, students like to see someone like themselves on campus. I like the ideal listed in this module of asking current staff members of the desired groups for recommendations. Give incentives to assist in recruiting.