Lieberknecht leads his side to Werder Bremen on Sunday warning that their campaign now starts in earnest after five months of getting to know their new surroundings.
"People still don't expect that much for us, but things have changed immensely for us," he said.
"We've now played half a year in the Bundesliga and the team have developed well.
"In view of this development, we can go into this game in confident mood. To summarise, we need many wins and more points if we want to be playing in the Bundesliga again in 2014/15."
With just three wins and 12 defeats, Braunschweig are currently propping up the rest of the division and Lieberknecht says they must "stop gifting points" in the second half of the season after needlessly losing too many matches in the first half of the campaign.
"It's okay to lose games, but not this way," he said. "The points we threw away do show us, though, that it is possible to have more than 11 points."
Bremen coach Robin Dutt will have to wait until the last minute before deciding whether Aaron Hunt is fit to play.
Should he miss his first game of the season, the Bremen coach says he has a "plan B, B1 and B2" with up to eight alternatives.
"Three of them give me a good feeling while the other five would be a risk," Dutt said.
"Hopefully Aaron will be able to play on Sunday. If not, then we have a surprise up our sleeves."