 Since then, the institute has greatly expanded, with an enrollment of 12,769 undergraduates and 6,464 postgraduate students .Despite their highly technical backgrounds, Tech graduates are no strangers to athletics; approximately 150 Tech students have gone into the NFL, with many others going into the NBA or MLB.Well-known American football athletes include former students Calvin Johnson, Daryl Smith, and Keith Brooking, former Tech head football coaches Pepper Rodgers and Bill Fulcher, and all-time greats such as Joe Hamilton, Pat Swilling, Billy Shaw, and Joe Guyon.