timeframe. having said that it is clear too many graduate high school who are not prepared for college. too many kids don't graduate high school. in the 21st century kids who don't graduate high school. what is their plan b? >> paul: one of your strategies for reform was charter schools in clusters particularly in harlem. you had some success there. you get a community that looks at it and all schools get lifted up. but the critique of charters is they never anywhere have again up to scale. this kind of scale you need even though some individual schools are very successful, you need scale if you are going to reform the whole system. how respond? screw are right. i think harlem is as close to -- >> you are right. i think harlem is as close to scale and louisiana now. in new orleans you have a choice system. in harlem today 40% of the kids who start school go to charter schools. that's why you got the