Everybody concerned needs to stop covering up the holes in the system by working around the holes. If a pilot needs weather and a dedicated flightwatch frequency is not there anymore, then make sure you get it through the ATCO. Don't just try and manage without the weather cos that means you are covering up the problems in the system.
Similarly if a pilot is forced to fly through airspace classified as TIBA due to ATC staff shortage, don't just pay for the service that you did not recieve, refuse to pay. If you pay, you are covering up the problems in the system.
Its easy to say from outside, but if the controllers are being forced to combine sectors above what they would like due to staff shortages, refuse to. By combining the sectors inappropriately, you are just covering up the problems.
If controllers keep working overtime to cover up the staff shortages the staff shortage will never be acknowledged by management, and hence will never be fixed. By working overtime, you are just covering up the problems.
If controllers provide break relief on single manned positions they are not rated on, ASA will think it is acceptable practice not to have rostered break relief on nightshifts.
If everyone stops covering up the problems, all those in charge cannot continue to plead ignorance, and will have to face up to ramifications of their past decisions. They will be forced to fix the problems, otherwise all these problems will one day line up like the holes in the swiss cheese and we will have another Uberlingen, heaven forbid.