"We can't stand on ceremony and we have got to move forward."
Bent is hopeful he will get the chance to replace Keane in Juande Ramos' starting line-up.
"Hopefully [I will get the chance], obviously a player like Robbie needs replacing but if I am called upon and the gaffer gives me the nod, I will give it a go," he said.
"He [Ramos] hasn't said anything [about Keane], what has happened with Robbie is down to him and the club, he didn't say anything to the players and we just have to get on with it.
"He [Keane] was a big figure in the dressing room, a nice guy and a top man, but obviously as I said we have to keep moving forward and push on in the league."