OK, I looked at it and it seems you have a point. In season 7, 2 today Serie A teams were in III league, 6 teams were in II league and 8 teams were in I league. But in Spain situation was somewhat different, 5 teams were in III league, 6 teams were in II league and 5 teams were in I league. If you want to look at it,look at team history at team page, if you didn't know it yet.
Bad managers.