Why is it that the expert(s) did not realise that the relocation of the Tritons fountain would damage it before architect Renzo Piano was commissioned to present plans accordingly and the idea made public?

Mr Piano must be bemused as he smiles all the way to the bank.

And, by the way, even the local village idiot could have advised the government that moving a massive fountain that has been half-embedded in the ground for 50 odd years would be likely to cause substantial damage.