Gers captain Ferguson is set to miss the first three months of the season after undergoing ankle surgery earlier this month.
"Barry is a right-sided midfielder and we don't have anyone," Novo told the Sunday Mail.
"We've picked up a few injuries and there aren't many players left. DaMarcus Beasley and Barry have picked up knocks and are important players.
"It's a big squad and we'll do everything we can to compensate because we need to be ready for the European qualifiers."