Migne said that although confidence in the team is called for, he urged Kenyans to be realistic at the same time as Harambee Stars face Africa's top-ranked team.
"It will be a game against the number one team in Africa and we have nothing to lose. But we will see then because we have a lot of expectations in the country I know that," Migne told reporters in Egypt.
"But we need to be realistic also knowing that it will be difficult but it was also difficult when we played against Ghana a few months ago ( in the qualifiers when Kenya surprised the Black Stars in Nairobi with a 1-0 win). And we won then and we can also do it now."
Avire was introduced in the first half to replace midfielder Francis Kahata.
"I think it was a good decision. I know he is a young player and sometimes coaches find it difficult to put in young players but not me. I worked with Le Roy and if there is something I learned from him is that there should be no fear in playing young players and to play with the spirit of winning the game," Migne concluded.