You’re taking about John L Smith.
And, no, he was known for slapping himself in the face and blowing leads at MSU until he had the 35 point comeback against us. Not trick plays.
He was then fired and replaced by Dantonio.
Per Wikipedia:
Michigan State began
2006 with three wins and then suffered an infamous late-game loss against
Notre Dame. The Spartans led 37–21 midway through the fourth quarter, but, despite a raging thunderstorm, the Irish rallied for a 40–37 victory. This led to a now-famous video of John L. Smith slapping himself at the post-game press conference.
[18]
The following week, Michigan State's homecoming game, the Spartans were defeated 23–20 by an
Illinois team that had not won a Big Ten game since 2004. After the game, players from both teams fought at midfield after several Illinois players tried to plant their flag at midfield of
Spartan Stadium. In the post-game press conference, Smith admitted the coaches were having trouble motivating the players
. Smith also slapped himself in the face as a reference to a claim by Notre Dame head coach Charlie Weis who stated that he had been hit in the face during a sideline scrum earlier that season when his Fighting Irish played Michigan State.
Following another defeat to
Michigan, Michigan State hosted and lost 38–7 to top-ranked
Ohio State. At halftime, Spartan Stadium had mostly emptied, with a large portion of the remaining attendees being Ohio State fans.
MSU followed up those losses with a 41–38
win at Northwestern. The Spartans, down 38–3 in the middle of the third quarter, rallied for 38 unanswered points for the largest comeback in
NCAA history. The Spartans then fell to
Indiana the following week.
On November 1, Michigan State decided not to retain John L. Smith, and the remainder of his contract was bought out for $1.5 million.
[19]Smith and his coaching staff stayed on the job through the end of the 2006 season.