Bank of Japan Governor Haruhiko Kuroda is running short of time to lay out an exit strategy from the bank's massive stimulus, with just months before the departure of two key board members who want to slow an unsustainable pace of bond purchases.
Takehiro Sato and Takahide Kiuchi have been thorns in Kuroda's side since he launched his radical monetary experiment in 2013, consistently warning of the demerits of the BOJ's huge asset purchases and dissenting to many proposals to ramp up stimulus.
With inflation still stagnant and economic recovery fragile, Kuroda has no plan to tighten monetary policy any time soon.
But he wants to ensure the BOJ's stimulus programme is made sustainable by laying the grounds for a gradual slowdown in its bond purchases, sources familiar with the BOJ's thinking say.
So just when Kuroda could turn to Sato and Kiuchi for help, the two will leave the board with their five-year terms ending in July, narrowing the governor's window of opportunity to lay out plans to slow bond purchases.