TNS managing director Mike Harris said: "If it was done properly, I think I would be in favour of it. It would have to be in the form of one 90-minute match, decided by penalties if it was a draw.
"We would get the benefit of the gate, and should we be unfortunate enough not to get through, we would want a percentage of Liverpool's income from the competition.
"We would want it covered by a national television station, and from a personal point of view, it would be nice to stage it at the Millennium stadium."