Scheyer, Singler were first team All ACC & Nolan was 2nd team All ACC in 2010. Duke was ranked in the Top 10 pretty much all season long & preseason Top 10 (or close). You make it sound like because not all 6 HS All Americans were all ACC or All American they weren't "stacked", well maybe not stacked for Duke?
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Back to the original point, Coach K pretty much has top talent on his team every year. Imagine what Ollie or Calhoun would achieve/achieved with 4-8 HS All Americans on their teams every year? Heck, many coaches would be successful with that kind of talent (minus Kentucky since I think they had 9 last year & couldn't pull it off).
Is the implication that Coach K is not a great coach b/c he has so much talent? Silly. Our 2011-2012 team started a McDAA at PF (AO), a top 5 player at C (AD), take your pick of Roscoe (#31) or Deandre (#16) at the 3, a lottery pick at 2G (JLamb) and a 1st round pick at PG (Bazz). Off the bench we brought Boatright (#49) and that team went 20-14 and for the most part, sucked. So that's 3 HS All Americans, three first round picks, a total of 5 guys who were drafted, and all 7 who are or will be playing professionally this year and it was just an awful team who was embarrassed in the tourney.
It's strange how a lot of UConn fans look back on our great teams and forget that they were very, very talented. 1999 we started two McDAA (Rip and KEA), two top 50 guys in Ricky and KFree, and Jake. Off the bench we had four top 50 guys in Antric, Rash, Edmund, and Mouring. That's 9 top 50 players. Not exactly a bunch of diamonds in the rough that were coached up.
2004 we started a McDAA at PG (Taliek), #41 at 2G (Ben), Rashad (top 30, but #17 by ESPN), a future 1st rounder in Josh Boone, and the national player of the year in Emeka. Off the bench, we brought in a top 10 player in Charlie V, top 50 player in Denham, and a future lottery pick in Hilton.
2011 is basically the same as 2012 with the substitution of Kemba (McDAA) and Jamal Coombs-McDaniel (#40) for AD and DD.
So moral of the story... Great talent + great coaching = championships. In this century UConn has 3 and Duke has had 3. Our talent (by rankings) has not been on the same level as Duke's, however, our championship teams have been pretty talented in their own right with veteran talent to Duke's new one and done fetish.