JMU is a fraud. They beat Michigan State in OT in the opener when Michigan State sucked (IIRC, you questioned Wisconsin, and they pummeled Michigan State 70-58 at East Lansing early in the season) and JMU had a decent 2OT win over #103 Akron. That's it and they were fortunate to win both of those games. JMU barely beat a middling Radford team at home.
The Dukes have played nobody since and they don't play anybody for the rest of the season; their toughest game on the schedule is App State (think about that). One of JMU's best players is TJ Bickerstaff, who transferred from BC because of limited playing time; he's not a starting player on crappy ACC team, and now he is a leader on ranked team?
Before Sun Belt play starts JMU plays #361 Coppin State and #346 Morgan State. Pathetic. So, JMU will be 12-0 and will be favored its remaining 20 games except at App. Not because JMU is particularly good, but because the Sun Belt is particularly bad in basketball. So, JMU's record and ranking are fraudulent. The ACC is the lowest rated Power V conference, and JMU would be at best a .500 team in the ACC.