If implemented fully, the Takenaka plan could help alleviate some of Japan's most persistent problems.
That left consumption tax, which, said Mr Takenaka, would have to rise from 5% to 14%.
An interview with one such man, Takenaka Heizo, appeared in the April 2 Weekly Toyo Keizai magazine.
"Nambu has his desk at the center of this big space, " says Takenaka of Pasona's Tokyo headquarters.
Mr Takenaka also wants it to buy less conventional assets such as exchange-traded funds (index-linked equity funds).
Economics professor Takenaka Heizo of Keio University praises Nambu for his vision and insight - and his down-to-earth style.
He also has a powerful sponsor, Heizo Takenaka, the economics and financial-services minister.
Mr Takenaka has been the cabinet's most visible minister, and postal reform has been Mr Koizumi's pet project for decades.
Mr Takenaka has only been in charge of the Financial Services Agency, which regulates Japan's banks, for a few weeks.
Mr Takenaka says that a new framework for local governments is needed to allow debts such as Yubari's to be forgiven.
As an economic, not a political, tsar, Mr Takenaka will have to be a lot shrewder than he has been so far.
The Industrial Competitive Council private sector members include Takenaka Heizo, economics minister in the Koizumi governent, Mikitani Hiroshi, CEO of Rakuten Corp.
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Hours before the Takenaka plan was published, the Bank of Japan announced a further monetary easing at the end of its monthly meeting.
Mr Takenaka upset many of his critics when he said after taking up his new job that no company was too big to fail.
In 1998, as an adviser to a previous government, Mr Takenaka helped to draft a plan to restore the budget's primary balance by 2007.
Takenaka, a still spritely 59 years old, came out of academia to serve as the economics and finance minister in the reformist Koizumi government (2001-2006).
Heizo Takenaka, the new economics minister, is sitting on one figure.
Mr Takenaka hinted that he and his team needed to co-ordinate with the Bank of Japan, since rising prices would be more helpful than falling ones.
In the absence of that sense of crisis, Mr Takenaka might find it difficult to force through the reforms that he, at least, is convinced are needed.
"Mr Takenaka appears to have recovered lost ground, as the schedule sets the stage for stricter self-inspections and loan asset inspections, " a report by Mitsubishi Securities said.
Mr Koizumi and Mr Takenaka made much of the decision to wrap the banking reforms into a broader reform programme which would also tackle the problem of deflation.
Not to take anything away from Takenaka, who continues, correctly and importantly, to advocate deregulation, lower corporate taxes, and structural reforms as the key to reviving Japanese growth and competitiveness.
Shiokawa seems a uninspiring choice in comparison to his colourful colleagues in the new cabinet, including Mr Koizumi or Economics Minister Heizo Takenaka, both of whom appear frequently on television.
As it is, both the finance minister, Sadakazu Tanigaki, and the interior minister, Heizo Takenaka, this week urged the bank not to move, saying that deflation was not yet definitively beaten.
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Since there will be stiff political resistance to a bank clean-up no matter what, Mr Koizumi and Mr Takenaka must make certain they win on this point before doling out any public-spending goodies.
Yet some politicians, including Mr Takenaka, have threatened to curtail the bank's independence if it tightens monetary policy before politicians deem it safe to do so perhaps by forcing an inflation-targeting regime on it.
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As was pointed out recently in the Nihon Keizai Shimbun by Koizumi-government economics minister Takenaka Heizo, what is missing in the proposal is any adjustment in pension benefits or other measures to manage its costs.
Down a dog-leg alleyway off a nondescript stretch of busy Shijo Avenue, and up one of the narrowest flights of stairs I have ever climbed, I meet the fourth and fifth generations of the Takenaka printing family.
The division of labour runs thus: the younger Takenaka, Kenji, chisels the cherry-wood blocks to old designs and new ones of his own invention, while his father Seihachi runs off the prints by hand, one by one.
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