Gary Caldwell will captain Scotland in their international friendly away to Slovenia on Wednesday.
Caldwell, a defender with English Premier League strugglers Wigan, will lead the side in Koper in the ongoing absence through illness of Darren Fletcher, with Scotland manager Craig Levein opted against a start for striker Kenny Miller.
"I've never started the game as captain," said Caldwell, who will be winning his 47th cap on Wednesday.
"Obviously Fletch is the captain and Kenny is the vice-captain so it is an honour to get it, but they are obviously the men in possession and I am 100 percent behind them. But to get it for one night will be special."
Levein, speaking at Glasgow Airport, said the versatile Mulgrew would be deployed on the left side of the Scottish defence.
"Charlie will play left-back," Levein said. "He would have been in the squad in November in Cyprus but he was injured. He was gutted that he couldn't make it.
"He is playing out his skin, he has improved enormously."
"Kenny will be on the bench but the manager has named a team that will be very, very competitive from the first whistle," said assistant coach Kenny Black.
"There will be an opportunity for lads to maybe get part of the game. Kenny is desperate to play but you saw the game on Sunday, the cup final, and we just felt it would be better having Kenny as back-up.
"Craig Mackail-Smith will play up front."
Full-back Foster, 26, came in after Aston Villa's Hutton suffered a hamstring problem.
Scotland, who last featured in the finals of a major tournament at the 1998 World Cup in France, are using the trip to Slovenia as part of the build-up to their qualifiers for the 2014 World Cup in Brazil.
Source: AFP Global Edition