I do not think that every school should be required to have a virtual school component. Some schools, especially smaller schools, can hardly afford to offer a variety of programs within their school, let alone incorporating a virtual option. A virtual high school component should be an optional part of public/private high schools, but not required. Schools can, however, look into partnering with another school or alternate virtual school that can be recommended to students with special needs.
As we, as educators, want to provide all of our students with equitable opportunities, I think all parents should be informed of the option for virtual school. This could be done through a newsletter, the counseling department, or an individual teacher. Whatever method of communicating this option is best for the school can be used to alert parents of the alternative schooling. In keeping with classroom equity, the high school may need to accommodate students' needs for internet, a computer, etc. However, this should be a very viable option.
I do not think that teachers need a degree in teaching online courses, because they are already required to take classes, such as this one, that equip them with the basic knowledge needed. I do think, however, that some sort of training should be required before teaching an online class. A special degree seems to be more than necessary, but some training in specialized teaching (online) is necessary and best for student success.
I really like what the case study brought up as a benefit to virtual education. Generally, technology like this is focused on students with disabilities or gifted students. Virtual schooling can help any student whether they have a special need or not. Something as simple as more flexible school hours providing time for a student to work and help out his family can make a big difference. I wonder, if virtual high school as an option was made affordable for any student, if we could see a decrease in drop-out rates. Often, students do want to learn, but environmental factors get in the way and influence their ability to learn, even if they do not have any "disability." This does directly relate to the question about who is responsible for providing/financing virtual school as an option. I really do not know, but it is obviously an important question to consider as we consider all the potential benefits and pitfalls of virtual high school.