While several states, including Georgia and North Carolina, plan to copy Tennessee’s Achievement School District, the founding director of the ASD has announced his resignation. Chris Barbic will leave in December.

Barbic had pledged to take the bottom 5% of schools–mostly in Memphis–and move them to the top 25%. Faced with community resistance, the ASD faltered. Several charter chains–including Yes Prep, the chain founded by Chris Barbic–pulled out.

Meanwhile the ASD is nearing the five-year mark and none if its schools are in the top 25%.

Lesson: it is easier to start a new charter and select motivated students than to take over neighborhood schools with an existing population.