Very simple. So the vampires at Merrill can start marketing to the billions of dollars (Clients) sitting in CD's, and Cash at BAC. Lewis of BAC even said himself live on T.V. that MER will start marketing to cash clients. BAC Clients, get ready for some Merrill snake oil sales people...
There's a ton of $$$$ to be made moving people out of CD's into MER's packaged products. I hate merrill. Used to be a Broker there.