Mike Florio, of Pro Football Talk, is saying a league source is telling him the Dolphins are interested in traded for John Harbaugh. The source says that the Dolphins will only call the Ravens if they know in advance that the asking price will not be too high.
According to Florio, the Ravens will start the asking price at two first-round picks. . Others think the asking price will be lower, though a trade would still presumably still require a forfeiture of draft capital.
The Broncos are said to have an interest in swinging a trade for Harbaugh as well.