I still have a very difficult time thinking there is one specific way to "do it" in college basketball. Maybe the only proven necessity is at least a little upperclass experience, but that might be it. There are examples over the years of all different kinds of teams winning it all.
In general, people look at the most recent and make the definitive determination that that is the way to go. But even looking at the last two champions, they had some unbelievable fortune and circumstances that are hard to replicate. On this year's Villanova team, 3 of their top 6 guys had taken redshirt years, and none of them were Tony Bennett development redshirts - they were all necessitated by circumstance, be it academic, injury, or transfer. There aren't many teams who can say that. And I look at the UNC team of the year before. They started five upperclassman that were all former McDonald's All-Americans. That never happens anymore. To put it in perspective, during that year no other team had more than one single upperclassman who played in the McDonald's game, and UNC had five. Again, I can't imagine many teams in today's era for whom that happens - it was an absolute perfect storm of a number of factors to keep that group together.
As history has shown, are there any absolute "musts" for a championship team? Is there an example to contradict any and every of the typical notions?