Are you sure it has anything to do with the people who built it?? And not an issue with the design or structural calculations that were decided on? A company building things normally have to follow a spec which has to be signed off, and if the work is meeting the specs you can hardly blame the contractor, look at the balls up that was made of the Sumburgh runway extension, it could be seen it wouldn't work but people were following designs and specs laid out which had to be followed, or look at the moorfield hotel, built by south company's and the tiles blew off and it leaks!