BUZZ-Centrica: weakens as co details revamp plans

** Utility poised for worst day since end-April after saying it will shed assets, staff, to focus on supply, services

** To cut c.10% of its workforce and sell up to 1 bln pounds worth of upstream and wind assets by 2017

** Cuts dividend by 30%

** Reports in-line 3% fall in H1 adjusted operating profit

** Stock, down 3%, biggest loser among European utilities and third biggest FTSE 100 loser

** "Centrica (LSE: CNA.L - news) 's strategic review reflects the reality of a cash constrained world. Implementation will be challenging with no guarantee of success," Jefferies analysts say (abhiram.nandakumar.thomsonreuters.com@reuters.net)