Tracking the Invisible Faculty

By JOHN GRAVOIS

A new index confirms that, at thousands of colleges, most professors are off the tenure track

For decades it has been happening everywhere in academe, but nowhere in particular.

The sweeping shift toward non-tenure-track academic labor has been one of the most worried-over trends in American higher education. But it has been charted mostly with broad-brush data, which give little indication of the trend's progress at the institutional level.

With a publication called the