The U.S. pay czar will allow bailed-out firms American International Group (AIG.N), Ally Financial and General Motors (GM.N) to be flexible with their compensation packages for certain high-paid employees, according to letters released on Friday. The Obama administration's pay czar must give her stamp of approval on pay packages for the top 100 earners at the four remaining companies that have received exceptional government assistance from the $700 billion Troubled Asset Relief Program. Patricia Geoghegan, TARP's special master for executive compensation, already reviewed the pay packages for the top 25 executives at the bailed-out firms.