The former Celtic boss arrived at the Macron Stadium on October 12, and has won two of three games played so far, moving the Trotters to within two points of leaving the relegation places.
Bolton captain Spearing has been an ever-present this season, and has undoubtedly been one of the strongest midfield performers in the Championship, and he has excelled further since the appointment of Lennon - who is allowing the midfield more freedom to express themselves.
They come up against promotion contenders Norwich on Friday night, before hosting Cardiff next Tuesday, and Spearing will be keen to see the upturn in fortunes continue against two strong performers at this current moment of the season.
Whilst personnel choices have remained much the same since the Dougie Freedman era at the beginning of the campaign, Spearing spoke of what Lennon - who won five trophies in four years with Celtic - has done to revitalise the once-struggling side.
“He challenged us to make a fresh start — and that is exactly what we have done,” the former Liverpool midfielder told The Bolton News.
“He wants us to get in people’s faces and create chances — and we have done that. The results are there for all to see.”
“We have been getting a lot of chances in games and causing problems. But it came together against Brentford and the tempo of the game was a lot better. From the start you could tell we wanted to play and get at them.”
If Lennon does continue the positive upturn heading into this weekend, he could lead his side onto 17 points and a mid table position by mid-next week. Whilst many would have written the Trotters season off in the opening weeks after the dreadful start endured by the club, Lennon was keen to stress to the players that the season could still be a success.
Spearing added: “When the gaffer came in he said that the first 10 games were nothing to do with him. But he said that we had 36 games left and in some countries that is a whole season."