Southampton, who parted ways with long-serving head of football development Les Reed earlier in the season, are third from bottom of the Premier League ahead of a tough match away to Tottenham Hotspur on Wednesday.
Krueger said the qualities Hasenhuttl displayed in taking unheralded German side Ingolstadt from the foot of the second tier to promotion to the elite augured well for Saints’ future.
“We have been aware of Ralph since his days at FC Ingolstadt, where he showed the qualities that we believe we need at the club,” said Krueger.
“He has since gone on to develop those attributes with a track-record of success in the Bundesliga and with a progressive and ambitious club in RB Leipzig,” added the 59-year-old Canadian, a former coach of the Swiss ice hockey team.
Krueger said Hasenhuttl represented an ideal match for the club.
“As soon as we met, Ralph’s enthusiasm for football was contagious and his hunger to take on a new and challenging job in the Premier League was evident,” said Krueger.
“In our discussions, he very quickly aligned himself with the values and the vision of the club.”