David Miller will step down after a dozen years as CEO of iBIO, the trade group that represents the biotech and medical device industries in Illinois. "I think it’s time for new leadership," Mr. Miller, 67, announced in an e-mail Feb. 28 to. POTCHEFSTROOM, South Africa (Reuters) – South Africa middle-order batsman David Miller smashed the record for the fastest century in Twenty20 International cricket when he reached the mark…