this =?

Context (the complete context is in the article of Nature, click the link at the bottom):
The IGERT scheme shows how appropriate reward structures can drive change. Governments and funding agencies should require educational institutions to release figures showing how many of their PhD students complete the course, and how many go on to find employment and where, and should award some proportion of funding accordingly. This would also help prospective students to select a good course, and force worse-performing programmes to shape up or close.

Until any of this becomes commonplace, it is up to prospective graduate students to enter a science PhD with their eyes open to the opportunities — or lack of them — at the end. Not all mushrooms grow best in the dark.

Link:
http://www.nature.com/nature/journal/v472/n7343/full/472259b.html