Angel - no, you don't say no, I agree, but, you do say, 'we can't do that without sub contractor support - what level of vetting do you want for the Subbies?' You're crap in Security if you can't assess what you can realistically deliver.
At no point have G4S made any attempt to call in support from any other company, not even now. They're happy to let the Army and the Police come in, but they haven't thought of asking for Private help. Why not?
One phone call, one web search would give them a list of hundreds of excellent Private security firms in the UK - with all sorts of National and International quality recognition marks. The Approved Contractor thing I was talking before is a multi-day, 7 section, 80-odd point, scored system. It's brutal. It looks at everything a company does, from customer feedback to financial legitimacy to employment practices. Big companies have whole departments just to get them through it. Small ones really have their work cut out. And the SIA has a webpage called the 'Register of Approved Contractors'...
Have any of us had a phone call? No. Would any of us say no? Hell, no.
Will they ring - not a chance.
And what's worse is, some of the venues have firms already working there that could handle the requirements brilliantly, (Old Trafford, for example! - and I'm not with that firm, for the record) with experienced, site-familiar staff who are being asked to step aside for half-trained new guards who may not even show up.
Someone is far too interested in making G4S money and not nearly interested enough in providing adequate security.