Today she pulled a Klein and voluntarily sabotaged herself:
D.C. Schools Chancellor Michelle A. Rhee plans to establish an experimental program that would offer customized lessons for disabled, regular and gifted students in the same classroom, a key component of her strategy to reduce exorbitant special education costs.
Rhee's proposal would launch a "differentiated learning" laboratory at West Elementary School in Northwest Washington, then replicate it citywide. Under the proposal, which is being met with skepticism from some West teachers and parents, the system would hire a private special-education school to run the program.
Differentiated Instruction = Instructional nit-wittery. Instructional nit-wittery is what is sabotaging Klein up in New York who also famously consulted education "experts" who advised him to adopt squishy reading and math programs with dismal results.
It doesn't really matter what she does now to improve the non-instructional aspects of the SC schools, this sort of educational nit-wittery is going to pretty much guarantee that student achievement will not improve.
If you hitched your wagon to Rhee's rising star, it's time to start backing away and giving yourself some plausible deniability when it ends badly.
And, it will end badly. That's now guaranteed.