The Yankees are thinking about offering Brian Giles, 34, close to $30 million for three years, but they want to investigate whether he seriously will consider coming to New York, a person familiar with the situation said. Although signing Giles would add a much-needed small-ball type of player to the Yankees' lineup - he reaches base often, runs the bases well and hits a ton of doubles - he is not a true centerfielder, having started only 30 games there in the past five years. Giles, however, "has no preference where he plays," agent Joe Bick said.