I don't know. All sorts of theories are out there. My guess is the intent was more to overthrow the government than put anyone specific in power. The loans to Japan in 1905 really kicked Russia in the teeth. One fairly balanced view is
here. Somebody, however, was paying for Trotsky and his thugs to hang around the lower east side of NYC waiting for the call to return. When it came, hundreds of them had the money to buy a ticket back.
This source names people responsible for financing the Bolsheviks. It is written without remorse and only tries to justify dealing with the devil. How shameful!