 The Chicago Bears's and Clark Shaughnessy's Stanford Indians success with a modernized version of the T-formation in the 1940s eventually led to the demise of the Notre Dame Box, as well as all single-wing variants.The Packers finally switched to the T-formation, after Don Hutson had retired, in 1947.No major NCAA or NFL team has used this formation since and much of the knowledge (i.e.