it definitely does make a big 5 in the sense of 5 clubs that have a much greater ability to bring in the big stars and compete in europe. They've been smarter than most people give them credit, buying players that have experience in the EPL, which has helped the team gel a lot faster than I expected.
Chelsea weren't really that fast anyway, considering how much they spent before bringing in Mourinho, but it was only once he arrived that they started winning things. I wouldn't be surprised if Man city break in to the top 4 this year, and challenge for the title next year.