I'm a current student, so any freshman programs have already fallen by the wayside
When I look at the undergraduate bulletin, it looks like there are 14 courses that need to be taken in the B-School before graduation. In 2 years, the average student takes 20 courses(5 per semester x 4 semesters).
As for entering the B-School early, if you have completed the Gen Ed requirements(which I have) I feel that it shouldn't be an issue. I'll keep ya'll updated on how it goes, so others in my position can use this thread as a reference.