The publication announced the selection Monday after Grigson edged Denver Broncos executive vice president John Elway 9-8 in a poll of NFL coaches and executives.
Grigson was the architect behind the Colts' return to the playoffs this year after a 2-14 finish a year ago. He took Pro Bowl quarterback Andrew Luck in the first round to lead a draft class that also included Coby Fleener, Dwayne Allen, T.Y. Hilton, Vick Ballard and LaVon Brazill.
Grigson also had to rebuild a team that lost Peyton Manning, defensive captains Gary Brackett and Melvin Bullitt, tight ends Dallas Clark and Jacob Tamme, receiver Pierre Garcon and center Jeff Saturday over the offseason.
(Copyright 2013 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.)