Speaking in his press conference ahead of Tottenham's crunch clash with London rivals West Ham on Saturday, Frank spoke about new signing Conor Gallagher following the midfielders move to the Tottenham Hotspur Stadium on Wednesday from La Liga side Atletico Madrid.
He said: “I think it's a top signing. I can't praise Fabio, Johan and Vinai enough, the ownership for doing it and get it done, get over the line. I think what he brings in terms of abilities, first and foremost, he's a very good player, great experience in the Premier League, also in La Liga, captained several teams.
"So that character, that leadership, that experience, and still young, 25, with plenty of development to reach, but coming in on a good level, bring his pressing abilities, his directness, scoring goals, but also being able to find good positions on the pitch, is exactly what we need.”
He added: "I think every experience makes us better, in a way. Either clearly impact or reflection and learn from the experience. Quite a few conversations I had with Conor, he really liked the experience at Atletico Madrid.
"He really liked working with Diego Simeone. He really liked everything about it. Of course, we were privileged that he would like another chance and it was possible. I think that experience, added to how he ended his last year in Chelsea. I think he was at times unplayable."
Frank also highlighted the 25-year-old Premier League pedigree as Gallagher is set for his Tottenham debut when West Ham visit the Tottenham Hotspur Stadium on Saturday afternoon.
He said: "I think he was a fantastic player for Chelsea that season. So, that's the Conor Gallagher we are looking at. That's the Conor Gallagher I'm thinking can step straight into this team and help us straight away.”
"I think of course one thing is the Premier League. Secondly is the project and the opportunity here. The role he could get in the team. I think first and foremost as a player that can help the team with his abilities.
"The character and the culture architect I think he is as well, in terms of pushing the group every single day, training and matches. I think you can see he is very exciting. There is some very exciting potential in this club.”
“Conor, I think, has a lot of good offensive abilities. You know, his ability to arrive in the box and score goals, his way of finishing. I think he's a clever finisher. As well, I think his skills around the last third is good in terms of arriving in the right positions.
"I told him about the project and the plan with him and the club and what we are aiming for and all that suited him very well and also I think he suited us and I think we suited him.”