The Army's new chief of staff, Gen. Peter Schoomaker, yesterday outlined a new strategy that calls for heavier investment in today's force. His vision is being billed as an approach that would ultimately quicken the pace of transformation established by his predecessor, Gen. Eric Shinseki. But the new message is clear: The latest member of the Joint Chiefs of Staff wants the Army to accept fewer risks in its quest to transform. "We have to fight [using] the current force,"...