Paul Tudor Jones is looking for the next generation of macro managers. The founder of the $14 billion Tudor Investment Corp., one of the best-performing and oldest macro hedge funds, is starting LaunchPad Trading, a joint venture that will give 20 young macro traders a chance to hone their craft before they start managing client money. It will be funded by Tudor partners including Jones, and HC Technologies, a Chicago firm run by Tudor alum Joseph Niciforo that specializes in algorithmic trading.