But Blatter 's resignation may not be enough .
Dr Nichols added that the fact Sepp Blatter will remain at the top of Fifa for the rest of the year will cause problems and negative headlines .
Sepp Blatter 's resignation may not be enough .
Dr Nichols added that the fact Sepp Blatter will remain at the top of Fifa for the rest of the year will cause problems and negative headlines .