At least one member of the club’s executive team has actively raised the option of ending Frank’s reign in recent weeks.
Spurs are 14th in the Premier League, having won just seven of their 22 games this season, and large sections of the supporters seem to have already lost faith in the former Brentford boss.
He was taunted by his own fans with chants of “you’re getting sacked in the morning” at the weekend, but Frank believes he can win back the supporters’ faith.
“As long as we win football matches and make sure we win enough of them, everyone will support us,” he said.
“It is not about me. It is about supporting the team, the players.”
Frank added he only has 11 outfield players from the usual first-team squad available for the match against Dortmund.
He said: “We need everyone to support us from minute one. Especially the team, especially the players. If we get that support, anything can happen. Magic can happen.”
Tottenham are 11th in the Champions League and a win against Dortmund is vital to continue their hopes of qualifying automatically for the knockout stages.