Matt Barrows of the Sacramento Bee retweeted his post.
We'll find out for sure within 24 to 48 hours of Sunday's game between the 49ers and the Arizona Cardinals. It's been reported that the 49ers and Harbaugh would part ways within that timeframe.
It has been reported that Harbaugh was offered a 6-year, $48 million deal to become Michigan's next head coach.
I just got off the phone with more sources tonight. It's done. Jim Harbaugh is coming to Michigan - and his friends are flying in Monday.
— John U. Bacon (@Johnubacon) December 28, 2014
How do I know this? From his friends who are flying in.
— John U. Bacon (@Johnubacon) December 28, 2014