The Guardian reports that Chrystia Freeland, the US managing editor of the Financial Times ,is leaving to join Thomson Reuters.

She will be replaced by Gillian Tett, an award winning markets reporter.

Also, Dan Bogler, managing editor of the Financial Times is leaving.

Bogler, who joined the paper in 1995 as a Lex columnist, is becoming president and editor of Medley Global Advisors, which the FT Group bought in January.

MGA produces macro policy intelligence for investment banks, hedge funds and asset managers - a sort of pumped up, super expensive Lex service for high end clients.

Bogler will relocate to New York and Joanna Rollo, deputy managing editor of the FT, steps up to become acting managing editor.

Lex is the analysis column that appears at the back of the newspaper.

The US managing editor role is usually one that is a fast track to the top positions at the FT. This is a position previously held by Lionel Barber, the editor of the Financial Times, and also Robert Thomson, editor of the Wall Street Journal.

The New York Times reports that Ms Freeland will write a weekly column on business and politics, and will help Reuters focus on consumer news.

Ms. Freeland, reporting directly to the editor in chief David Schlesinger, will be heavily involved in a new financial news video service the company will start this spring. She will also continue her role as a frequent face on television, commenting on the news -- the Reuters press release says she will "serve as Reuters principal on-air pundit for other external broadcast partners."