It was thought that Harbaugh might leave for the NFL last year.
Maybe he'll do it this off-season.
Multiple NFL teams have been doing background work on the leader of the University of Michigan's football team, who just led his team to a second straight Big Ten title.
One source said he would consider rejoining the league, while another said he would discuss an opening if asked.
It's no surprise that Harbaugh would be interested in the National Football League.
During his time with the San Francisco 49ers, he led them to three straightNFC Championship Games and a Super Bowl appearance. They lost to the Baltimore Ravens in the Super Bowl but it was an impressive stretch of coaching.
At Michigan, there have been five double-digit win seasons in the last eight years.
While he didn't beat Ohio State in his first six seasons and seemed to be establishing a trend of just falling short of the team's ultimate goals, he has turned things around recently with two straight victories in the rivalry.
The Michigan football team is going to the College Football Playoff for the second year in a row.
✨ Watch more top videos, highlights, and B/R original contentAccording to Rapoport and Pelissero, he may have left for the Minnesota Vikings head coaching job if it had ever been offered. Kevin O'Connell got the position despite being interviewed for nine hours by him.
Harbaugh toldMitch Albom of the Detroit Free Press in February that the NFL rumors wouldn't be a constant thing.
He said that the Super Bowl is the most important prize in the sport. Winning a national championship is more important than anything else. That's awesome. Let's go ahead and do that.
I was close to the Super Bowl, but this was the right time to try and return to football. This is the final one. Let's chase college football's biggest prize.
The Michigan is two wins away from that prize. Rapoport said his former team, the Indianapolis Colts, is one of the teams with a coaching opening this year.
Maybe Harbaugh's pursuit of a Super Bowl title is not over.