Several school districts in Colorado are doing "turnarounds" at some of their most troubled schools. A "turnaround" means replacing the principal and half the school staff. The idea is to give a distressed school a fresh start. It's a type of school reform that's being touted by the US Department of Education, but it's controversial and some experts say it doesn't work. In this two-part segment, Sarah Hughes talks with Charlotte Macaluso, the new principal of a turnaround school in Pueblo. Then we speak with two experts, Richard Kahlenberg of The Century Foundation and Bryan Hassel of Public Impact, about whether school turnarounds work.