The Boro slumped to a 3-0 defeat away at Preston North End in September, but Westley has insisted that his players will change their approach for their trip to Molineux to play Wolverhampton Wanderers on Saturday.
The 45-year-old told Sky Sports News: "It wasn't long ago that Wolves were playing in the Premier League and we were in the Conference so both clubs have come a long way - one down and one up.
"Right now they are flying high, which you'd expect given the resources that they have.
"We weren't ready to go to Preston, I knew that. There were too many players in the wrong mindset. We can win at the weekend"
Stevenage are currently sitting in 17th position in the league table, while Wolves are three points behind leaders Leyton Orient.