"The top of the in-tray is not to concede goals, we've conceded too many already and defensively we want to make our structure and organisation a lot stronger and we've got talented players and we need to go and score more goals obviously," Smith said.
"We haven't scored as many as we would have liked to, but there's definitely players there who can do both sides of the job.
"When I spoke to Stuart (Webber, Norwich's sporting director), he believes in the squad of players, I've looked at the squad of players with Craig (Shakespeare, assistant head coach) and we both believe that it's a squad that probably aren't producing the results they need and our job is to improve their performance levels.
"If we do that then we'll get the results."
On facing Saints, Smith added: "I already have an idea of how Southampton play because we came up against them so recently in the last game I managed for Villa.
"So it should help me in terms of not having to catch up so much compared to if it was a club that I've not played against, but they beat Aston Villa 1-0 so we have to turn the result around with the performance."
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