Counselor Presentation

I learned a great deal from the counselor presentation today. The people in my group have already heard this, but I will repeat my question here. While I believe that counselors coming into the classroom in the high school setting could be useful, I am questioning how many times the regular instructional period can be interrupted. So many organizations, programs, and initiatives only want "just one or two class periods" to present their case. With all of these people vying for instructional time, so many times actual instruction time gets pushed to the background. I would love to be able to present a viable solution, but I have yet to figure one out!