It's crazy to think that even that 2008 squad, which had lots of injuries and major motivation issues with every player, still managed to make the CL semis... and we lost by a scoreline of only 1-0 over two legs...
Also, you can't compare that squad to the squad we have now. A complete cleanout wouldn't work. These are la masia players and it will be hard to find talent anywhere near the level of Pedro, Cesc, or anyone else in our squad that will come at a reasonable cost.
The board doesn't just sit there and think to themselves "ok, we need to play football manager now". It doesn't work that way. There are a lot of issue to think about, politics being the main issue. Cleaning out la masia would send a bad message to all the kids next door camp nou training their asses off.
I still think it's the board that's the main issue. I hate to say it, but nothing can really change that until 2016. Everything will remain the same for two more years, but this is a big part of being a sports fan: You have to stick with your team with the highs and lows.