I see what you're saying, I don't think we have always played brilliantly, especially not going forward. But then again we've been missing most of our best players for a couple of weeks.
Anyway, I think it's a common misconception that you have to be really good to finish 5th or whatever. You just need to be efficient, never give up and keep the scoreboard ticking over. That and have rivals who misfire.
Look at the times Liverpool have got into Europe due to an endless string of Gerrard goals.