Eddie O'Sullivan has admitted there could be a logic behind future British and Irish Lions trips becoming Test-only tours - if that is the only criteria for success.

While Lions head coach Sir Clive Woodward has hailed the tour a success in terms of organisation and planning, most people will forge their opinions based on the Tests and equate it as an expensive failure.

O'Sullivan, part of Woodward's coaching staff during the past six weeks in New Zealand, has described the issue as "a big question" facing subsequent overseas missions.

"If you are going to judge the whole outcome on three matches (Tests) at the end of the tour, there is a logic to saying if that's what it is all about, then just come down and play three games," he said.

"It does beg the question. If a Lions tour is based on a successful Test series, and that is the only thing that matters, then maybe you should just play a Test series, but that wouldn't be a traditional tour.

"It is a big question, going forward, for the Lions, and maybe the lessons of this tour and the last tour (Australia 2001) tell us a lot.

"This is my first Lions tour, but I think the way the game has changed in terms of the amount of preparation that goes in and demands on the players, that you would have to question trying to play two games in a week. It is a huge demand."