"It is a new manager and there is fresh impetus, a new directive," he said. "Everyone wants to impress. All of a sudden, it is a fresh slate and you have a job to keep your job.
"Everyone wants to do well, no-one wants to come in and do badly, so it is just an added impetus."
Green added: "The manager has come in and brought his new ideas and new ways of playing, as well as new thoughts.
"It is just a different thought process and a different way of doing things.
"Sometimes it is better, sometimes it does not work, but the lads want it to work and want to work for him.
"More exciting football is what we all crave and hopefully that will come across."