Why no trequartista role, no 4-3-1-2 formation in the last five matches of UCL?

[BlueWhale]

Here are the lineups of the last five matches of 2007/08 season of UCL:

[BlueWhale]

Here are the lineups of the last five matches of 2008/09 season of UCL:

[Suneet]

Well, look at the final C.Ronaldo played on the wings and through the center, he was linking them along with Park who was always in control of one wing.

Barca meanwhile have rotating AM's Xavi and Iniesta keep coming up and making runs..