Here is a comment from MIT News. There is nothing about whether MIT did in fact recruit a load of new international faculty between 2011 and 2012.
For the first time, MIT has been ranked as the world’s top university in the QS World University Rankings. The No. 1 ranking moves the Institute up two spots from its third-place ranking last year; two years ago, MIT was ranked fifth.
The full 2012-13 rankings — published by Quacquarelli Symonds, an organization specializing in education and study abroad — can be found at http://www.topuniversities.com/. QS rankings are based on research quality, graduate employment, teaching quality, and an assessment of the global diversity of faculty and students.
MIT was also ranked the world’s top university in 11 of 28 disciplines ranked by QS, including all five in the “engineering and technology” category: computer science, chemical engineering, civil engineering, electrical engineering and mechanical engineering.
QS also ranked the Institute as the world’s best university in chemistry, economics and econometrics, linguistics, materials science, mathematics, and physics and astronomy.
The Institute ranked among the top five institutions worldwide in another five QS disciplines: accounting and finance (2), biological sciences (2), statistics and operational research (3), environmental sciences (4) and communication and media studies (5).
Rounding out the top five universities in the QS ranking were the University of Cambridge, Harvard University, University College London and the University of Oxford.