FACTBOX: Whom to watch as Russia's Medvedev takes office

(Reuters) - Who gets the top jobs in the Kremlin now Dmitry Medvedev is president will shed light on the balance of power between the head of state and his predecessor Vladimir Putin, who will be prime minister.

The following are key Russian posts and politicians that investors and analysts are watching.

KEY POSTS:

*Kremlin Chief-of-Staff

*Kremlin deputy Chiefs-of-Staff

*Federal Security Service head

*Government Chief-of-Staff

*Finance Minister

*Kremlin economic advisors

*Foreign Minister

KEY PEOPLE:

*SERGEI SOBYANIN

Currently: Kremlin chief of staff (since 2005)

Age: 49

Educated as a lawyer, Sobyanin was governor of the Tyumen region, one of Russia's richest oil-producing areas, before being made chief of staff by Putin.

Known for his ability to find compromises between Russia's powerful oil barons and keep governors in order. He headed Medvedev's election campaign.