We're managing some smaller-scale stuff with the Analysis Support Construct, but a key issue for success there is having some stability, and having independent Technical Leads (working for ASC, not the suppliers or the customer) whose official job is assuring the work's fit for purpose but unofficially can be referees and relationship counsellors.But in some ways, that’s just an excuse. The fact is that the public sector just doesn’t understand or trust industry let alone know how to harness synergies with it. The relationship is always about the contract, not the outcome.
But it's not straightforward, and it does need communication. One reason it's worked fairly well (ASC is winding down, ASTRID is spooling up to replace it) is that the Technical Leads are (a) experienced enough to know what's possible, what's reasonable and what's taking the mick, (b) the TLs are able to push back against both industry and customer if necessary.
And I'm not sure how well it scales up, either...