Well, that didn't take long.

The Jim Harbaugh back to the NFL rumors are already swirling, courtesy of ESPN's Jon "Stugotz" Weiner, who co-hosts "The Dan Le Batard Show" midday radio program.

Weiner said the Indianapolis Colts will fire head coach Chuck Pagano after this season--Pagano and the general manager in Indianapolis are reportedly in a good, old-fashioned feud--and Harbaugh will "break Michigan's hearts" by immediately bolting back to the NFL and taking the gig in Indy.

For Harbaugh, it would seem like the perfect fit. For one, he'd be back in the NFL, and in a very good spot--Indianapolis has some flaws but for the most part the Colts are a young, up and coming team. And for two, he'd be back with Andrew Luck, whom he recruited to and coached at Stanford.

Also, Harbaugh spent four seasons playing for the Colts in Indy--arguably the best four of his pro career.

And let's not forget that Jim's big brother John Harbaugh has a Super Bowl ring--he got it at Jim's expense in Super Bowl XLVII. That could be a factor as to whether Jim goes back to the NFL, too.

Harbaugh posted a 44-19-1 coaching record in four NFL seasons. He made the playoffs his first three years, and never fell short of the NFC championship game in the postseason.