06-07 we only signed Carrick, 07-08 is when we signed those players and in 08-09 we signed Berbatov, Tosic, Llajic and De Laet. 09-10, when we had build our reputation up for some time and had just sold Ronaldo - we went on to buy Valencia, Owen, Diouf.
So as the top two club in the world, knowing Ronaldo was on his way out/was sold, we signed:
Da Laet
Carrick
Tosic
Llajic
Berbatov
Valencia
Owen
Diouf
Nani
Anderson
Hargreaves
Possebon
Tevez
Rafael/Fabio
Kuszczak
Bayern in the same situation has taken advantage of it in a manner that makes us look a bit naive. They have signed Gotze, Thiago, Martinez, Lewandowski and Neuer the last three or so years since regaining top club status.
Of course that is without selling the starting star player worth 80 millions.
Bayern are planning for the future in an exceptional way, Thiago and Gotze aren't "what if's" like Anderson, Rafael, Fabio and Nani - but rather the absolute top talents around who would walk in to most teams first eleven. Lewandowski, Martinez and Neuer were of course proven players signed to as key-players, as well as being young enough to handle the future.