"
Electronic Arts founder
Trip Hawkins conceived the series and approached Madden in 1984 for his endorsement and expertise. Because of Madden's insistence that the game be as realistic as possible, the first version of
John Madden Football did not appear until 1988. EA has released annual versions since 1990, and the series' name changed to
Madden NFL in 1993 after EA acquired the rights to use NFL teams and players. Despite Madden's retirement as a broadcaster in 2009, he continues to lend his name to and provide expertise for the game."
https://en.wikipedia.org/wiki/Madden_NFL
I thought I may just be wrong and dug further. While I wasn't able to find anything definitive, I was able to find something from 2014 in a USA Today article. Here's an excerpt:
"TODAY'S MADDEN
The myth? That Madden retired.
"He just retired from broadcasting — the only thing he's stepped away from,'' Mike Madden says.
The 78-year-old keeps his head in the game. He serves the NFL competition committee on the coach's subcommittee and the league's safety panel. Each Monday, he reviews the officiating and injury reels along with the coaches' "All-22" tape from every game.
USA TODAY
Bell: Steelers savor Ben Roethlisberger's hot streak
Sunday, Madden invited USA TODAY Sports to get his take on trends at the season's halfway point at his 8,000-square foot Goal Line Productions studio.
Madden draws up a numbered play sheet of games to match each screen. This Madden Command Center was his dream from the early 1980s when he first walked into CBS's New York City studio one Sunday off."
That old boy may just still be contributing... I rescind my defiant stance.