John Thompson returns as color analyst for Dial Global's NCAA Radio Network coverage of the Final Four.   Thompson, who was inducted into the Basketball Hall of Fame in 1999, is best known as the former Head Coach of the Georgetown Hoyas.   During his 27 years as Georgetown coach, Thompson compiled a 596-239 record, was named NCAA Coach of the Year 7 times, and led his team to 7 Big East titles, 24 straight post-season appearances, 3 NCAA Final Fours and the National Championship in 1984.   Thompson also coached the 1988 U.S. Olympic team to the Bronze Medal.  Thompson currently hosts Dial Global’s weekly college basketball program, March to Madness with John Thompson.