Legg MasonÆs Bill Miller is tweaking his strategy

Legg Mason Capital Management chairman and CIO Bill Miller, whose index-beating streak ended last year, says he is tweaking his overall strategy and buying more large-cap US companies, reducing exposure among his top 10 holdings, increasing the total number of stocks he holds, and selling some of his small- to mid-caps to increase returns.Miller, who was recently in Hong Kong for a series of client meetings, says the volatility created by the US subprime crisis has created a good oppo…