While his long-term goals look ambitious, the firm "looks completely different than two years ago", according to Morgan Stanley.
But the draft conclusions prepared ahead of the summit meeting call only for agreement sometime in 2014, making the spring deadline look ambitious.
No new sponsors have joined up since last year's World Cup in Brazil, and a projected target of $6bn for the 2018 tournament is beginning to look ambitious.
Meanwhile, in Manchester, plans for a Royal Opera North look ambitious, while the British Museum will struggle to finance its new wing.
Even if the numbers look ambitious, these are the sort of things that people in the private sector get fired for not trying.The real problem with the report is all the things that are not in it.
"Very ambitious startups often take a long time to work or sometimes they take a very long time to look ambitious," Altman says.
He said: "This may look ambitious, but we have seen a clear increase in activity with the introduction of the renewable heat incentive and the zero waste plan, as well as an upturn in green heat projects being planned and installed across Scotland".
