Things that need to be done : make sure moving into subprime causes flood of mortgages which rapidly decrease, make sure investors visit less frequently, add more descriptive messages to interface to explain game "Strapped for cash? Create a CDO and sell to an investor on their next visit" above "Buy CDO" button. A tooltip at start to say "Get a loan to start granting mortgages to add to your portfolio", Some description of the area where mortgages are collected that this is your mortgage inventory. Investors should say "Click me to sell me your CDOs".... many other things...