Does anyone ever think about what they are writing.
Don't want to appear defensive in respect of the big IT firms but....
Do you really think that just because they get paid they are not concerned about these projects? The reality is that big IT firms like small ones are desperate for their projects to succeed. Without successful projects the cannot get reference sites/stories that they can use to win new business. A failure damages their reputation and credibility (ask Fujitsu and Capita) with new customers in both public and private sector.
If the project is going titsup then they will be called in by the relevant minister who will blame them and ask for money back, which is often granted for fear of impact on their ability to do business. The big suppliers are just as badly damaged by these projects as the Government and people without access to ALL the facts come on forums like this and accuse them of fraud and even theft at times or simply lining their pockets.
But here is why they are used; SMEs good though they are cannot accepted the limits of liability that govt puts in to their contracts. Nor can they take on the full project since they don't have the hundreds developers, engineers and other resources that are needed to develop a large project. If you use multiple SMEs on a project you need to be able to manage them and the management company you use will not have any contractual lever to make them do what they are supposed to. Worse still they compete against each other to try and win more business whilst blaming other SMEs for the problems. And ultimately lots of SMEs means lots of competing claims in respect of failures by the others which are impacting the ability to deliver.
Don't get me wrong the big IT players do get wrong and more frequently perhaps than they should but like SMEs they are dependent on their workers to do their jobs properly and on the customer to know what they are doing. Universal Credit like all such projects is probably having problems because of a mix of failings on the part of those involved from the smallest to the largest, from contractor to customer.