Spurs currently have 11 players sidelined with injuries and Tudor says he will have to repair the confidence of those who are available to him.
“The situation is not easy because we have a lot of injured players,” said the Croat.
“First priority is to give everything the team need in these moments.
“The team need, I believe, first of all, to get some confidence, to get some courage.”
Frank was sacked last Wednesday following a 2-1 defeat by Newcastle, which extended Spurs’ winless run to eight matches.
Tudor’s first game in charge comes against rivals Arsenal at home on 22 February.
Despite Frank’s domestic struggles, he guided Spurs through to the knockout stages of the Champions League, which recommence in March.
