I think you are looking at this through blinkers. We did try to keep the ball, it was so obviously different to what ONeill was doing that you couldnt possibly not notice it, unless you just didnt want to.
The problem we had was the lack of technical ability in the squad, we couldnt play the passing game at a tempo that regularly opened up the opposition, which often meant we kept the ball but possession floundered.
Now that we have returned to a UK thump it and chase philosophy, the players look happier and you no doubt will be much more pleased.
surely the flip side to that is that if you have players that are adapted to playing a certain style, you use tactics that play to their strengths rather than deciding on tactics and then trying to force your players to fit your ideas?
i cant see how the old wimbledon team would have marched through the divisions if they had tried to get a team of brickies and part timers to play like barcelona!
MAYBE over the course of a few years houllier MAY have been able to change the squad and its style of play enough for his philosphy to acheive results, but he would never have had chance to prove it if he had got us relegated in the mean time.