Gamble is eager to see Dean Smith’s side challenge for the play-offs after they finished 14th in League One this year, 10 points behind the top six.
Goalkeeper Richard O’Donnell rejected a new deal and joined Wigan last month but James O’Connor, Paul Downing and Kieron Morris have re-signed and talks are on-going with brothers James and Adam Chambers.
The Saddlers are yet to make a new signing and will be in the hunt for a new keeper after O’Donnell’s exit and Gamble wants a more consistent challenge for promotion.
“We’ve got a lot of players signed on contracts for next season and we’ve still got a few out of contract that we’re working on. So we’re positive moving forwards, we want to do better than last season,” he told the Wolverhampton Express & Star.
“We want to have a more concerted push for the Championship – that has to be the aim because there were some fantastic highs last season but also some areas where we under-achieved.
“We didn’t score enough goals last season but the defence was pretty solid throughout apart from a few exceptions.”