Mavericks to include better window management solution? Up until now, I have used a program called Stay to maintain my preferred location and sizing of all my apps.  My main use case is that I have two external displays that require me to rearrange my applications after unplugging the displays (which is quite common going to/fro meetings).

Since Mavericks is supposed to enhance the support for multi monitor setups, I was wondering if this new support eliminates the need for a third party solution.
Using Mavericks Mac OS X 10.9.1 here with 2 external monitors and the laptop display on a MBP late 2011. One is connected via the thunderbolt port and the 2nd one via a USB external adapter/card. Mavericks does not remember window position and sizing after unplugging my MBP from the two monitors and re-plugging it. Still have to use Stay.