Levein guides the Scots into Wednesday night's friendly against Denmark adamant there has been improvement in his team over the past 12 months.
Scotland's manager says the approach of Adam, who recently joined Liverpool from Blackpool, highlights that. "The good thing about Charlie is that he has not changed," Levein said. "I can say that about all the players. They have not changed. They do not have inflated ideas about where they are. It's a positive message to send out about the players' attitude, and how it's not just about themselves and what they can get out of it playing for Scotland."
Proof or otherwise of Scotland's progress will be highlighted during next month's European Championship qualifiers against the Czech Republic and Lithuania.
Yet Levein has consistently cited cause for optimism. "I was asking a player yesterday how things were going at his club," the Scotland manager said. "He said new players were turning up with their Louis Vuitton this and Louis Vuitton that, driving big cars, and they think they've made it when they haven't even done anything. He said: 'They're going to be smashed in training, that's for sure.' It's just this attitude that they understand, that hard work is still really important. If you look through our team and watch how hard they work, that gives me more encouragement than anything. That will ultimately help us."
Rangers' elimination from the Champions League at the qualifying stage and that of Dundee United from the Europa League have triggered the latest sceptical noises about the state of Scottish football. It is not a chorus Levein is keen to join despite the national team also being absent from a major finals since 1998.
"I was at the Dundee United games they should have won," Levein said. "I didn't see the Rangers game over there [at Malmo] but by all accounts they should have gone through. It's fractions.
"It wasn't so long ago we were talking about teams in Europe beyond Christmas. These things tend to go in waves. I have no influence over the club sides but the idea behind the international team is to try and find something and keep on improving. I've said it before but if we get qualification for one tournament, confidence in the squad and belief in the squad will just soar."
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