Eli Lilly (NYSE: LLY) is looking to its pipeline to fill the gaps left by a number of high-profile drugs comping off patent. In October 2011, blockbuster Zyprexa will fall to generic competition; additionally, about three-quarters of Lilly's current revenue comes from eight drugs that will lose patent protection between now and 2017. "We have the challenge of replenishing our product portfolio from our pipeline," says CEO John Lechleiter (photo) in a USA Today interview....