The 24-year-old, who scored the last-minute equaliser in the 3-3 draw with Manchester United on Tuesday, believes that McCalren is more than capable of guiding the club out of the relegation battle if he receives the backing of his players.
He said: "We are showing the manager we are definitely fighting for him.
"We are all in this together and we will go through the tough periods together and when the good times come, we will stick together as well.
"We are working every day both in the classroom and out there on the training pitch. Every manager has different ideas and while at the moment, we have not had the results yet, the performances have been there.
"Now we just need to get the goals and hopefully that will be enough.
"We have been struggling recently with the defeats we have had and despite playing well, we have not been finishing chances.
"The draw against Manchester shows the character and spirit in the team to fight back like that and score three goals from losing positions.
"The mood feels very different to last season when we struggled in the way we played."