With Saints looking to trim the squad and Gabbiadini a player that has constantly attracted some interest from Serie A clubs, the decision was made to cash in now, free up some space on the wage bill and bring in extra funds.
Hasenhuttl said: “If you are a new manager at a new club you get the first experience, first impressions of the player and it seems to me he is a good player with fantastic technique but with this intensive pressing system we try to play, to be honest, it's not his way of playing.
“It was better to find a solution that is better for both sides.
“We can't show him what he wants to see from us and he can't bring what we want to see from him so it's better to find a different solution.
“I think it's a good step for him to go back to Italy and I wish him all the best.
“He's a fantastic player and I am sure he can score goals at every club in the world and we go in different ways."