Fat Cats' Friend? By Jim McTague August 21, 2006 JAMES JOHNSON, A former chairman of Fannie Mae, just can't stay away from boardrooms. He sits on the boards of no fewer than six corporations, and is chairman of the compensation committees of five of them. That's a full plate for anyone in these times of increased scrutiny of boards' actions. Only 350 of the nation's 50,000 corporate directors sit on four boards, and most are content with one. But that's not all that makes Johnson's board work stand out. When Johnson joins a board, executive compensation controversies often follow. The...