Does the brain trust on the sidelines really believe that some dirty money can "incent" teachers into the top quintile of test score generators? Having all teachers performing as "highly effective" on DC's pay for scores evaluation scheme is the equivalent of having a baseball team where everyone is hitting .300--all the time. Excuse the mixed metaphors. From WaPo:
. . . the performance bonuses are targeted toward the highest-evaluated among them. If a teacher received highly-effective evaluations for two years in a row, his or her base pay could rise by as much as $26,000 a year in addition to the bonus pay.
Sixteen percent of the city's teachers were ranked highly effective last school year. . . . .