i think that most of our coaches have it wrong. Or at least most commments on here misunderstand the problem.
I have no idea what the curriculum teaches, but it seems to be that players are taught to put a hole in the back of the net, aim for the very corner, etc. ie score the spectacular goals we would all love to see.
I think the strikers need to change their mindset from one of breaking the back of the net and scoring the spectacular goal (which is what comes naturally). To one of converting chances and hitting the target. This is what cahill has done and he is probably the best example i can think of where an good solid midfielder has converted into a top class striker. The most important facet for a striker is intelligence and position off the ball. It is particularly difficult with one striker, which is the modern way, as there is no striking partner to play off of, or put the defence in two minds, so the strike has to be twice as good to get the same amount of space.
Still, the point is that the striker needs to concentrate not on the spectacular goal (which is nice) but on making himself the extra half yard of space by anticipating the ball properly.
From a training perspective, i think that shooting practice or small sided games should involve witches hats for goals (in the old days you would have 5 or 6 hats you had to knock over to win. But this seemed to go out of fashion when cones replaced witches hats on the training paddock. Any shooting practice should probably use small u6 sized goals, and do not necessarilly need a keeper, in many instances.
The other major issue, with Australian finishing at least, is that we do get any width and get around the back of the defence. It is no coincidence that we look our most dangerous recently when Robbie kruse drifts wide. This is because he drags the defenders accross with him. It also allows Leckie to attack from the midfield, where he is more dangereous (but that is a different story). The main point is that as a team, the side needs to learn how to drag players out of position and create space for themselves and their team mates. small sided games will work okay for this but the main thing is to get the players thinking about this, and stop the games to reinforce good, or bad play. Really it is a matter of getting players thinking and wanting to learn. Players themselves will start to think about how to improve positions in a game, or watching and playing games to learn rather than just for the sake of it.