Give it a chance; it'll take a couple of years before the effects are fully felt.
I'd reckon that the majority of clubs in the Championship will be within the 8m. Some won't, no matter how hard they try - Bolton for example - but it's only really QPR and Forrest who are showing a complete...
Their wage bill last year was something like 80-90m. They've not got rid of enough of the high earners and have apparently still got players on 5m a year contracts.