"I think Common Core is going to destroy the accelerated math sequence they have in junior high and senior high school!"
I know some people disagree with certain parts of Common Core, but it's not a ceiling--it's a floor.
Even if being the floor is the intention, the implementation in many places have treated as the ceiling. A very unfortunate development.
Also the common core authors claim that the standards are pedagogically neutral. The implementation has been mostly reformist or constructivist. Another very unfortunate development.