Josh Gerstein of Politico has the answer:
Oct. 22, 2009: NBC’s Savannah Guthrie asks Obama about all-male basketball games at the White House .
Oct. 25, 2009: New York Times ’ Mark Leibovich makes the Sunday front page with a story about whether the White House “feel[s] like a frat house .”
And now we learn, via the White House Flickr photo feed …
“Yes, ladies, a girls’ rollerderby team is an excellent idea.”