Matthew Di Carlo of the Shanker Institute says that the reformers cannot succeed, despite their best intentions, because they over promise what they can accomplish. Whether it is a promise of closing the achievement gap in short order, turning around 1,000 schools a year for five years, college for all, or making every single child proficient by the year 2014, they set goals that might–if all goes well–be achieved in decades, but cannot be achieved in a few years. They say “we can’t wait,” as if their sense of urgency will surely cause obstacles to crumble. But the obstacles are real, and genuine change requires time, patience, will, and the collaboration with teachers that reformers think they can bypass.

Hubris has its limits.