He was the Bills greatest coach. Our SB W/L record might be very different if he stayed.
I do recall him being out coached by By Bud Grant however when he was with the rams..It was a play off game on grass in LA. Field in good shape at the beginning but heavy rains predicted any minute. Grant went air Grant from the beginning, running a pass happy 2 minute drill on every possession . I don't remember exactly but I believe they scored 2 or so TDs. Ground Chuck, true to his name, was content to run the ball and settle for couple FGs.
Half time the rain started. Coming down in buckets, turned the field into a sea of mud. Runners couldn't run, passers couldn't pass. Minnesota won with the half time score.