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For three decades, Robert A. Rosenbaum helped guide established companies and fresh startups through complex challenges.

The Connecticut native was president of an apparel manufacturing firm, ran technology projects for big companies, and helped several businesses run smarter and more profitably with his operations acumen.

But for the past 18 months, Rosenbaum, 54, has taken on a new challenge: technology economic development for Maryland. He's been serving as president and executive director of Maryland Technology Development Corp., or TEDCO, the state's technology development arm.