He'll also have to face a boardroom where his predecessor, Jerome Powell, still has a vote.
Perhaps the Bank of Japan's Deputy Governor Shinichi Uchida offered a template of a steady hand on Tuesday. He managed to preserve policy flexibility without spooking markets.
Uchida did have a bit of extra help from Japan's finance ministry, which is lurking just off-stage with threats to intervene in the currency market, should the yen fall again.
Asian markets traded mostly sideways on Wednesday, with Warsh the main show in town and sellers of oil taking a breather to wait for confirmed details of the U.S.-Iran agreement.
Brent futures have sunk below $80 a barrel on reports the U.S. plans lifting sanctions on Iranian oil. Other than the Fed show on Wednesday, Sweden's Riksbank is expected to be on hold but signal a hike could be coming later this year.
British inflation is seen creeping up to 3% thanks to higher oil prices, while final European readings are not expected to deviate from preliminary figures.