I have observed a lot of trends and similarities in the way things happen in this game. So, just don't worry about the other 3 active teams in your group. Get the tactics right, and you will surely get out of it. The major problem in this game is when something else other than quality and tactics significantly affects the outcomes of matches, so much some times that as manager you cannot do anything to change the final overall outcome; this is something that I don't like at all in this game. If you are a good manager and don't suffer such things, you will surely win or at least do well in what seemed difficult competitions visually (unless of course if there are other managers who are good or very good in the same competition).
Sometimes, I even feel more confident when I see my team being grouped or put in a batch where other teams seem to be good. Why? Because, when I see a lot of poor teams, I get the impression that something fishy has already been planned. Why I feel so? Because I have been in some situations enough of times, and their seems to be a lot of similarities and trends.