Barclays is betting it can revive its wilting share price by upping investment in a crop of its smaller businesses including U.S. credit cards, sources familiar with the matter said. Chief Executive C.S. Venkatakrishnan is studying plans to allocate more capital to the bank's wealth management, U.S. credit card and global payments activities to boost returns, according to people familiar with his thinking and reported here for the first time, after drafting in Boston Consulting Group (BCG) to review strategy earlier this year. A team of BCG consultants has taken up temporary r...