Greetings Patricia (Patty) C: Understanding the roles of collegues contributes to the bigger picture of student and educator success. Although at first the roles may appear distinct, one soon realizes the roles are intertwined. When you discussed faculty memebers who are also guest speakers- the students begin to realize and value like goals, cooperation/teamwork of on-the-job tasks, and the gained knowledge begins to make better sense to the learners (both students and instructors). As well, the instructors also begin to realize that individual "career domains" (as I like to refer to them) need support from each other and cannot operate effectively in isolation. The days of "my department" is an antiquated belief. I am glad to hear that collaboration between departments is occurring because our individual educational values should continue to evolve in order to avoid stagnation and boredome within each department. I enjoyed your post!