beijing chinese president xi jinping wednesday tap low-profile official lead signature war corruption replace retire wang qishan whose sweep anti-graft campaign make china second most-powerful politician zhao leji appoint new seven-member politburo stand committee take wang role head central commission discipline inspection ccdi position head communist party powerful organisation department charge personnel zhao appointment likely spur efforts turn fight graft campaign structure feature china political system analysts say xi corruption fight ensnare 1.3 million officials say twice-a-decade party congress wrap week battle take tigers fly continue reference elite officials ordinary bureaucrats zhao job appear less take tigers swat fly effectively institutionalize anti-corruption system get ccdi mechanisms implement level say damien associate director paulson institute u.s. think tank go challenge everyone file former head organisation department speak reporters unveil seven-member politburo stand committee xi say party battle rid corruption write constitution tuesday journey without end virus party structure say wang sometimes call communist party fireman skill resolve crises widely credit success vigor graft fight highly popular public rattle party elite wang previously vice governor central bank help oversee china recovery 2008 global financial crisis build toothless obscure ccdi fear watchdog fell party heavyweights include former domestic security chief zhou yongkang campaign also take many xi rival help tighten grip power zhao 60 young member stand committee steadily promote career include long stint poor rural areas give comparatively low profile among chinese leaders xi zhao shaanxi connection accord cheng li u.s.-based expert chinese politics brook institution among group politicians personal political tie northwest china shaanxi province xi ancestral home move party rank recent years zhao spend much early career shaanxi countryside leave strong regional accent institutionalize anti-corruption xi plan overhaul china anti-corruption architecture create powerful super-ministry national supervision commission combine work number agencies include ccdi although two share offices personnel commission also power investigate civil servants even party members back law give legal authority many measure currently use party investigate officials xi also say last week secret party interrogation system know shuanggui would replace new detention measure although right group say unclear whether suspect access lawyers new system experts question much power new body without wang helm clear head new commission exactly relationship ccdi china 's xi tap low-profile official take war graft