"Although exams are relatively fair tools to select talent, some people with special gifts may be ignored," he said.

This year, Fudan University announced changes to its admissions policy to give professors more leeway in picking their own PhD candidates. Previously, only those who had obtained a master's degree could apply. In Cai's case, he was recommended by three professors, including Qiu, and was admitted without a qualifying exam.

Many netizens argue that selecting candidates by professors' recommendation may lead to placements under the table.

"I think such a problem can be avoided if there is a stringent supervision system. The responsibility (to supervise) should be given to the administration departments," said Gu Yunshen, vice-president of Fudan University's graduate school.

"Meanwhile, we should fully trust those professors, who value their reputation."

(China Daily April 29, 2009)