Read the article: $10B is the budget, $250M is the amount of that that isn't funded, it's still a big hole, but 40 times smaller - please change the header above
Then later, he estimates that the actual amount is approximately twice that, since the official ten billion figure is based over optimistic assumptions.
He was stating that the 7.5% return they wanted is not likely, that 6.5% is much more likely, and that he wouldn't be surprised if the return was less than that 6.5%.