And the current Scottish number one faces the ultimate test in front of his new national boss - World and European champions France in a friendly next Wednesday.
Sully will be aiming for his 26th cap at Saint Denis.
Former German chief Vogts has named a young squad for his first game.
He said: "For international players, it is not only a friendly - we are not playing Cyprus or Malta, we are playing possibly the strongest team in the world.
"I think this squad of 22 has a very good balance of experienced players and young players.
"I wish all the players the best for the game in Paris and it's a big chance for them to play against France.
"I have to look to the long-term and I'm hoping that the young generation can come through.
"I'm looking to these young players at the moment, but you never know in the future."
Scotland squad: Douglas (Celtic), Gallacher (Dundee Utd), Sullivan (Tottenham), Caldwell (Newcastle), Crainey (Celtic), Dailly (West Ham), Matteo (Leeds), McNaughton (Aberdeen), Pressley (Hearts), Weir (Everton), Cameron (Wolves), B Ferguson (Rangers), Hughes (Rangers), Gemmill (Everton), Lambert (Celtic), McNamara (Celtic), Severin (Hearts), Crawford (Dunfermline), Freedman (Crystal Palace), McCann (Rangers), Miller (Wolves), Thompson (Dundee Utd).
Neil Sullivan has been called-up for Berti Vogts' first game in charge of Scotland.