Sunderland came in for heavy criticism following their 4 - 2 opening - day defeat at Leicester .
It only increased after Sunderland 's performance against Norwich , with fans urging club chairman Ellis Short to invest heavily in the squad .
Sunderland came in for heavy criticism following their 4 - 2 opening - day defeat at Leicester and it only increased after their performance against Norwich , with fans urging club chairman Ellis Short to invest heavily in the squad .