Before I say anything else, I want to make something clear: I love Brittney Griner. She is an incredible basketball player, a great representative of Baylor University, and, by all accounts, a truly wonderful person. She gave Baylor four great years with 2 Final Fours, 1 National Championship, and arguably the greatest season in major college basketball history last year at 40-0. She will dominate the WNBA just as she did WBB in NCAA with size, strength, and a game that has matured over the last four years to the point that she is both an offensive and defensive force.
All that said, she is not an NBA player. And it's not because she's a girl (which she is, before anybody gets clever). It's because in the NBA, her elite size will not be so elite. In fact, compared against most starting NBA 4s and 5s, she'll actually be under-sized. Rather than fielding entry passes over the heads of smaller opponents after establishing her position with strength and footwork, she will be pushed around constantly by players with anywhere from 40-60 (or more) pounds on her, to say nothing on raw strength. If she gets the ball, she won't be able to get a shot off because she doesn't elevate, and her easier points from putbacks will quite simply evaporate. In college, she's a 6'8" force of nature defensively that is almost unguardable (sans Louisville-like groping/punching) on the other end. In the NBA, even mediocre players would score over and around her without difficulty. The differences between what she has faced and what she would in terms of athleticism are that stark. It's almost like playing two completely different games. There will come a day, I'm quite sure, when a woman will be capable of playing in the NBA and holding her own. Today is not that day, and Brittney Griner is not that woman.
Here's the thing: Mark Cuban knows everything I just said and much, much more. He is in the business of finding and acquiring talented basketball players who can play in the NBA. More importantly, however, he is also in the business of public relations, attracting and deflecting attention as needed to serve his interests. And I'm fairly certain that's exactly what he's doing here: creating a bit of a stir. Just look at what he said in the ESPN article I linked above:
Cuban acknowledged that Griner playing in the NBA's Las Vegas summer league would have tremendous marketing potential.
"It would, wouldn't it? See how she could do?" Cuban said. "That'd sell out a few games."
I'm certain it would. And if handled tastefully, both sides could go their separate ways afterward having benefited from the exposure. But if handled poorly, Griner could find herself dominated by players who probably wouldn't be thrilled about it in the first place, and that's something to think about, too.