Defeats at the hands of Leeds United and Derby have turned around the statistic of being unbeaten in six games to Forest having won only two of their eight fixtures to date.
Slow starters under Billy Davies and then in turmoil last season as Steve McClaren came and went, Cohen believes there are plenty of positives to take from early life with Sean O'Driscoll.
"Sean has been great since he came in, he has given players their opportunities," he told the Nottingham Evening Post.
"Now we need to repay his faith in us by producing more quality."
Managerless Blackburn Rovers are the visitors to the City Ground on Wednesday night and, after the rough and tumble of Sunday's local derby perhaps a more open game of football will suit the Reds in their bid to get back to winning ways.
Check out the head-to-head record of the two sides by clicking below.