Chris Viehbacher, Biogen CEO (Photographer: Scott Eells/Bloomberg via Getty Images)

Chris Viehbach­er once again sets out to re­vamp R&D at a ma­jor bio­phar­ma. The last try led to his ouster

An out­spo­ken Chris Viehbach­er spent six years try­ing un­suc­cess­ful­ly to prod Sanofi’s multi­bil­lion-dol­lar R&D group in­to a more pro­duc­tive phase that re­lied less on part­ners …

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