But first the boss has arguably an even greater challenge — persuading the England defender that his future remains at White Hart Lane.
Glenn revealed that talks between the club, Sol and his agent Sky Andrew had progressed and would continue in the near future.
If those talks have a happy ending Glenn says he can bring Sol on further.
He said: “Sol is a class defender and one who hasn’t hit his peak yet and I feel, working with him, that we can bring him on even better.
“Maybe the system we’ll look to play here may challenge him and bring him on even more as a player.
“Everyone can improve. That’s the beauty of this game. Zidane could improve and if he was sitting here he’d tell you that himself.
“Sol’s not far off being one of the top defenders in Europe, he’s there now.
“But there are things that you can always encourage to develop a player. He’s not at his peak yet. When he does hit his peak another set of curtains will open and the game will become easier.
“So there are challenges for Sol here as well as the club.”
Glenn refused to be drawn on speculation linking Sol with other clubs.
“I don’t know what other clubs have been negotiating with Sol and I won’t deal with speculation,” he declared. “All I know is that we’ve been talking to Sol and his agent and we will continue that next week.
“I want Sol to stay because he wants to stay for the future of the club, that he can see where the future is going and that he wants to work with me. We want to keep him and that goes without saying.
“He loves this club, he’s told everyone that, but what he’s saying to me and the board is probably similar to what I said before I arrived.
“Perhaps the timing is right for him to stay. It’s a new start for the club.
“I’ve been very, very encouraged by the new owners. They have surprised me with how they want to work and that has encouraged me.
“We’ve got on well, we’re working closely and we’re having to because it is a time we have to bring players to the club.
“I can see these people want the club to be successful. They want to be back in the top six teams in the country — and that’s where we should be.”
Glenn Hoddle insists he can make Sol Campbell an even better player.