The 30-year-old will hope to line up for the Magpies against first club Nottingham Forest on Saturday having settled in to life on Tyneside after completing his loan move from Aston Villa.
However, while the club's future off the pitch remains swathed in uncertainty, he has seen no evidence that that extends to the dressing room.
Harewood said: "I haven't seen anything bad here, just a really good set of professionals. They went down and they were upset about it but I haven't seen any evidence of last season.
"They have a job to do now and that is to get back in the Premier League - that's all I have seen. There are some very good players here. They are established players but they have a point to prove. They want to get back up there and stay there.
"They have all experienced the disappointment of last year and they don't want to experience it again or be involved in a relegation battle. They are knuckling down and looking really sharp."