The originally proposed design was very basic but also pragmatic and likely to endure. When that design was rejected teams were assembled to come up with a rang

The originally proposed design was very basic but also pragmatic and likely to endure. When that design was rejected teams were assembled to come up with a range of designs and pick one that would be suitable. The group that chose the winning design later claimed that they had no comprehension of the design risks and had only renderings and optimistic initial cost projections to work from. There was a process that involved many people and it failed.