AAC preview: SMU and UCF continue conference trend of head coaching changes, which school could be next?

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Josh Heupel has either the most difficult job of any head coach in the country taking over a new team or the easiest. Maybe it's both.

Hired to replace Scott Frost at Central Florida, Heupel takes over a team that went unbeaten last season and declared itself the national champion. Most of the playmakers return from one of the best offenses in the country, including gifted quarterback McKenzie Milton.

Sure, it's great to inherit a loaded roster, but anything less than another American Athletic Conference championship might not be enough to satisfy Knights fans this year. Frost, who went home to coach Nebraska after two seasons in Orlando, will be tough to follow in every…