My points to improve PES 2010...
1. Bring the trick-stick back - using the Right analogue stick.
2. Bring L1 player run back - when you have the ball, press L1 and the closest player to you runs ahead so you can perform a well-timed through ball - this feature was in previous PES versions untill PES 2009.
3. Being able to volley the whenever it is available - ie. You've taken a corner kick, but the opposition headers the ball out of the area, the ball then comes towards your player outside the box, you hit the shoot button god knows how many times, yet the Shot Gauge will not appear UNTIL you actually receive the ball, so by this point you have to control the ball, THEN shoot - does anybody else have this problem?? Versions before PES 2009 didn't have this problem.
4. Volley instead of header - the ball is coming to your player from a cross, the ball is at knee height, yet when you press shoot the player will perform a very weak/diving header - why not volley it in?!
Hopefully these will be in PES 2010! It will be pathetic not to.