Early on there was a difference in expectations in how contract would have run
Yes, the government had an expectation (not based on experience) that the system would work. Raytheon had an expectation that they could ream out the tax payer whilst delivering nothing.
And here's a thought for the arseholes responsible: If the £1.1bn was generally spent on people (given there's diddly squat hardware), and the average salary of all involved were £60k, then there has been EIGHTEEN FUCKING THOUSAND MAN YEARS pissed up the wall, with nothing to show for it.
Bring back the death penalty, say I.