I think there is already a fair amount of parity. It's just not at the very top, but might not be all that far beneath the surface. UConn's success this year I think is a little misleading as to the over all status of parity. In a given year, the actual NC might not be so obvious. In 2013, UConn was not the favorite and it can be reasonably argued that LVille did UConn a major favor by taking out Baylor. When Texas A&M won (and neither UConn, nor ND, nor Stanford nor Tennessee etc won) it wasn't all that obvious as to who would win. Even this year, lots of people thought ND was a proper challenger and it's too bad they lost their center to muddy the water.
It's no doubt true that UConn, over the last decade plus is never far from the top, but even UConn doesn't win every year, several other programs stay relevant to championship possibilities, and other programs surface regularly to get some notice. It's also true that 4 or 5 other programs get enough talent every year so that a UConn can't outright dominate by default. True that players like Stewart, Moore, Taurasi and Bird are great weapons, and are surrounded by talent, but at times Duke has had that sort of situation, as have ND and a few others, but don't exactly put it all together the same way. It does take something extra, and it really looks like GA is that something.
For those too young or disinterested, when UCLA under Wooden won the NC in 10 of 12 years, it was true that he typically had a roster full of AAs. Arguably, that made his teams even more remarkable, because just like GA, his roster of great individual offensive talent put aside personal goals and played the best team basketball in the country. Like our women, his teams lived off of stifling defense. Getting a lot of talent in one place certainly helps, but it does not assure great team play or an annual commitment to a common goal. That's what truly distinguishes UConn and it it seems it isn't all that easy to replicate by other coaches. If by "parity" the doomsdayers mean that UConn is a problem, I'm afraid that so long as GA is around, they will never be out of the championship discussion provided his teams stay relatively free of key injuries.