A top investment officer at Pimco says it is unclear what the reasoning for the Federal Reserve’s surprise decision to buy up to $300 billion in Treasuries, according to Reuters.

“It’s unclear whether today’s policy changes by the Fed are coordinated with the Treasury,” said Bill Gross, co-chief investment officer at the firm.

Gross, who helps Pimco oversee more than $800 billion at Pimco told Reuters the economy, and by extension, the financial markets “needed a substantial shot of adrenaline.”

He also noted that the Fed’s acquisitions “will help substitute for the private sector’s delivering over the past 12 to 18 months,” he said.

To the extent that they are successful and Treasury efforts match these efforts, certain risk assets may benefit as well, although their ultimate prices will reflect the ability of government to successfully reflate.