New York Times: Campaign Seeks to Recruit Top Students to Become Teachers

“In addition to recruiting more candidates with science and math backgrounds, Mr. Duncan said, the nation’s public schools need to attract more Hispanics and blacks, particularly men, to teaching. Citing the model of several countries where students regularly score high on standardized tests, Mr. Duncan said that they pull their teaching corps from the top tenth to top third of college graduates.”

One can have blacks and Hispanics as teachers, or one can have recruits from the top third of college graduates. One can’t have both.

I don’t understand this “need to attract” Hispanics and blacks. Why don’t Hispanics and blacks apply for the teaching jobs? Are they not aware that their services are desired?