My ever charming friend Brett Biddington has recently released a paper about Australia's space future (Biddington, Brett 2008 Skin in the Game: Australia's National Interests in Space to 2025. Kokoda Papers Number 7, Kokoda Foundation, Canberra). He says:
Since the mid-90s, the Commonwealth has pursued a highly decentralised approach to space amongst its departments and agencies. This is not considered a tenable option for the future (Biddington 2008:58).
He proposes two new organisations: a Central Policy Coordination Body, and a Satellite Design and Operations Authority. The latter might be a statutory authority, a company, or a national research facility. The former is not necessarily an agency as such, but would play the role of being Australia's voice in the space world - our lack of such a unified voice is detrimental to our credibility in this sphere at present.