Kapella
Your email suggests that airlines have problems with airports, however IMO i think these are often bought on by themselves. Numerous postings on this forum suggest the demand from airports to various places but at times, airlines, like sheep, play 'safe' and head for congested and overcrowded airports and then moan about poor service, competition etc etc
Many airports, and I think the UK ones are at the forefront at this, work increadibly closely with current or potential airlines and I agree that often many of the problems associated to airports are self imposed by the airlines, often because handling agents, which are appointed by the airline, not the airport are under staffed or resourced.