I've played in a few teams where success wasn't really on the cards, yet some members of the side were convinced that we should have been higher. It was clear to me at the time that we really just weren't good enough, yet even I found myself claiming '2nd after team x' when they had just beaten us comfortably. Until it's mathematically impossible we were going to finish top, second, third, etc. When we'd finish 6th or wherever we were always unlucky and going to do better the next year. I think it's the team environment thing - I know I never believed it but I can't really speak for the others. Surely a fair amount of the squad are more than aware that they as a collective just aren't good enough to get promoted. They're professionals, some of them have played 100s of matches. They all know that it'll take a Lavary or two from outside the group for it to consistently perform above itself.