From a different thread:
MikeSpivey wrote:My guess is that they may have just received a very large unrestricted "gift" and perhaps see this as a strategic year to use it since there likely will be a good deal of losers and only a few winners in the admissions arms race. Indeed, I think it is possible they have had a reserve budget for just this opportunity and perhaps now have decided to employ it, based on the data they have. This is purely guess-work by me but this might be the strategic thinking...
I think MS9 might be on to something here. I'll go further. This move will totally fuck with other schools, who are currently walking a tightrope with their budgets/medians in admitting students. WUSTL isn't the only splitter school in the 19-30 range. GW, Minnesota and Indiana have nearly identical admissions practices (the former being fierce competitors), and the California schools (UCLA/USC) have gotten a lot more splitter-friendly lately. And as the life of the splitter school goes, your target medians are a few withdrawals away from total collapse. If this move poaches matriculants from these other schools, it could really throw a wrench in to their gears.
The greater university has a massive endowment, especially when controlled for the number of students and the STL cost of living. It has long been a goal of the Medical School (ranked #1 in the nation as near as 5 years ago) and the greater university to get the law and business schools up to par with the rest of the pack. I bet they were saving up for a time like this when they could strike while others are struggling.