The Reds played well in the first half in the defeat against Derby before falling away in the second half, while it was the opposite against Preston on Wednesday as a strong second-half showing brought a point.
Montanier feels that a consistent performance can help Forest to achieve a result tomorrow and climb the Championship table.
He said: “After the international break we have had six games – three wins, two draws and one defeat – but we are not very satisfied with the last two games because we played well in only one half in each. We have a good opportunity to play a full game and correct it, as if we play a good game we will have a much better chance of a result and a victory.
“I am optimistic after the second half on Wednesday, as we had good movement and good opportunities to score. We have to play this way, not only for 45 minutes but for 90 minutes.
“Wolves is a big club and a tough team. They do not deserve their rank in the league as they have good potential with good players and a good squad. They have recovered to a good level in the last few games and it will be a difficult game. We play at home and we have to continue where we left off against Preston.”
There are more injury concerns for The Reds as Armand Traore and Damien Perquis are out after picking up injuries against Preston, while Nicklas Bendtner and Thomas Lam are doubts.
Montanier said: “We have seven or eight injured players. It is a habit for me and it is becoming something I find not difficult to manage. Sometimes we recover one or two injured players, then you lose two or three. It is my job to manage them and I am optimistic as I have a competitive squad and it is an opportunity for others and to show their potential and quality.
“It is difficult to assess the first part of the season as I haven’t been able to play with the same line-up as players haven’t played together. It is difficult to assess and I know having injured players is part of the job. With injuries it is difficult to have the same line-up and see what we can do. I know my squad and if we have a full squad then we can reach a better level than where we are at now.”
With the January transfer window looming, Montanier has ideas about what he wants to do in terms of recruitment, but will not make wholesale changes to his squad.
He said: “I have an idea and we will see the possibility to add to the squad. My job is to plan different possibilities to recruit, but not a lot of players as we can recover some injured players and we have good players in the academy.
“It is difficult and not difficult to work towards the future. We will see with the new owner the possibilities that brings but it doesn’t change my job to plan for the future in the short-term and also the long-term.
“The deal is not closed and we have to be patient, especially when you have three games in the week and we have been focused on this one tomorrow. When the deal is closed we can speak about the direction and the capacity that we have.”