Sorry, but I don't know how to quote! However, back in July, Thomas Coupling commented
"......but the juicy bit, the pointy endy bit, the product end is always and will always be decidied by commerce. It is the contractor that will hold the customers hand and lead them into temptation, coax them into buying 'essential' this and future proof that. The customer has no way of outwitting the contractor in this regard as they have no SME in this area. This is why one ends up with a product that is modular/common/has synergies with other areas"
Actually, the MCA and DfT have recruited a team of SME's from the RAF and RN who are current operators. So they may not be as green as they are cabbage looking!