Chris Jans makes $290K at NM State. Forbes made $650K, and ETSU just received a $500K buyout payment. The math is pretty easy.
FWIW, you may be confusing NM State, which is the WAC and is where Chris Jans coaches, and New Mexico which is in the Mountain West.
The WAC, NM State's conference, was raided by other conferences and is now a POS conference. They are rated the #24 conference and the other teams in that conference are:
Cal Baptist
Seattle
Grand Canyon
UT Rio Grande Valley
UMKC
Utah Valley
Cal St. Bakersfield
Chicago State
ETSU is in the Southern Conference, and is the #15 rated conference. The Southern Conference is better than the WAC, and ETSU is a much better job than NM State.