hard to say as the resume's across the board are generally terrible.
I agree that the quality this year is lower than most years overall, but I've been struggling with the above sentiment recently.
There's always a set number of wins and losses out there. and those wins and losses are simply divided up each year. The only way for there to be more "terrible" resumes is for there to be more "nearly perfect" resumes also.
Other than UConn, Oklahoma, and UNC, I don't know that it's really any more top-heavy than any other season. It actually seems fairly evenly distributed.
It's odd.
One theory is that, as Vol fans, we're disappointed this year and we watch more games in a conference that clearly is the worst it has been in a long, long time. I wonder if Big East fans think that there are a lot of terrible resumes out there simply from their perspective.
Also, it could be that the middle of the pack (i.e. those teams vying for an at-large bid) is unusually large this year. It's like one big dog fight, and few are separating themselves. Take Butler, Texas, and the SEC East as prime examples.
It's interesting, though - there seem to be a lot of teams with impressive wins but also unusually embarrassing losses. Think of what Louisville has done the past month or so, beating then-#1 ranked Pitt and also getting crushed by a Notre Dame team that had lost 7 straight. Losing to ND is one thing - losing by 30 makes you scratch your head.