"Imagine if they took $280 million that they were going to pay Kevin Durant and used that to pay U.S. workers," David Scharff, a Baltimore physician, wrote me in an email after I suggested in a recent column that Under Armour get into manufacturing at home. "How many Baltimoreans could they employ with $28 million a year? Two-hundred-and-eighty workers making $100,000 (pay, 401k, health benefits). What would it be worth in marketing value? What advantage over Nike would that be in the marketplace?"