They may not recruit into team leader positions for some companies they may be promotional positions. There is a recent thread about sponsorship - have a look at that. Pastmac was saying that when he was emailing companies from the UK they didn't reply and he thought that this was because they get innundated with people testing the water. He made a 3 week trip to Oz and visited companies (some of who had not replied to his email) and has had job offers and now has the chance of a
PR visa rather than a temporary one. He won't mind if you PM him.
Ali