Kentucky coach John Calipari finally won a national championship this past season using mostly one-and-done guys — something many coaches avoid because it makes continuity difficult for programs. That is among the many reasons he is disliked (having Final Four appearances vacated at UMass and Memphis is another). There are some people like Bob Knight who despise the one-and-done system because it ruins the integrity of collegiate athletics. Others dislike it for similar reasons.
Michigan State coach Tom Izzo believes race is a factor in the disdain for one-and-done athletes like the ones Kentucky has. Asked if he thought a highly talented, highly athletic team of white players would be viewed differently, Izzo said yes to William C. Rhoden of the New York Times.