Comolli replaced Frank Arnesen who had arrived at Tottenham in May 2004, only to join Chelsea a little more than a year later. The Frenchman left St Etienne in the summer after a year as the club’s Technical director.
"For Tottenham and myself it was not a decision that you could make in two days. I had time to discuss every aspect of the club. It is a great challenge, and the right time.
"A great job has been done in the last 24 months by the board, the chairman and recently by Martin but I just want to be judged on what I do and not what people did before.
"I am just joining to make the club improve more. Where it will take us? See you in three years and we'll see. I'm looking forward to it though. I am very ambitious myself, like the club is, so anything we can do to get to the top will be a good thing," he said.