Sometimes a coach inherits a bad team or steps into a program where the university simply does not invest in basketball. In some cases, through recruiting, Xs and Os and inspiration, that coach can turn a bad team into a good or even great one.

The guys on this list are not those coaches. Here are the 20 worst coaching tenures in the six major conference since the NCAA Tournament expanded in 1985.

Stars like Syracuse’s Fab Melo (Brazil), St. Bonaventure’s Andrew Nicholson (Canada) and Vanderbilt’s Jeffrey Taylor (Sweden) and Festus Ezeli (Nigeria) may have left the college ranks for the NBA in June, but that doesn’t mean the college game isn’t still flush with international talent.

After a year in which the Pac-12 regular season champion failed to qualify for the NCAA Tournament, none of the programs in the league made a coaching change.

That’s partly a testament to some of the new coaches in the league or the built up credibility for some of the others. But it was a mild surprise after the entire league struggled en masse for another season.

Even after every recruit signed, after players were drafted, and after (nearly) every coaching change was made, college basketball news impacting the 2012-13 season continued to break through the late summer and early fall.

In 2012, 30 of 68 teams in the NCAA Tournament field missed out a bid a season earlier.

The tally included eight from the six major conferences, including returns to prominence for Indiana and NC State. A quarter of the Sweet 16 -- the Hoosiers, Wolfpack, Baylor and Ohio -- was comprised of teams that a year earlier were either in consolation tournaments or missed the postseason altogether.

In 2012-13, Tournament droughts undoubtedly will end with a handful of teams capable of reaching the second weekend.