Critics questioned the club's ambition following the summer departure of influential winger Chris Asthon, but Foden has spoken in his team's defence.
"I feel better about this squad than I have in previous years," Foden told BBC Sport.
"There's a lot more strength in depth. We've been written off but we stand a better chance this year.
"The new players have got some big shoes to fill but we've still got the same attitude and mentality."
The Saints opened the season with a 24-19 win away at Gloucester.