Bill Winters, co-head of JPMorgan's investment bank and Fawzi Kyriakos-Saad, head of credit and rates in Europe and global head of emerging markets, are reportedly no longer in these roles at the firm. A message left with Kyriakos-Saad's secretary was returned by spokeswoman Sarah Oppler, who declined comment. It could not be determined if these changes are part of a wider bank reorganization.