Research: Strategic Data To The Rescue!?

I'm not a big believer in the power of research but you should know that there's this thing at Harvard called the Strategic Data Project, and as its name suggests it provides research about various school districts around the country: 

SDP's latest report, covered in Teacher Beat, focuses on LAUSD and includes surprising results about substitutes doing better than rookies (Analysis Examines L.A. Teacher Characteristics)