Argentina celebrated a record margin of victory and scored the most number of points in a game against Wales, but Tandy saw some shoots of positivity.
“The day ended in disappointment, but there’s a lot to like around the group,” he said.
“You could see what we’ve done over the last two weeks coming out, to score four tries was a real positive and we left a few out there.”
The Pumas boasted 400 more caps than Tandy’s side and their experience and class shone through.
“We’ve got boys with low cap numbers, that’s the opportunity for us,” said Tandy.
“I know the journey we’re going to go on, I’m excited and energised by it.
“I know today is the marker of how far we need to go. It’s the line in the sand to probably give us something to work on.
“We’ve been together as new coaches for two weeks. We’ve seen a lot of things we’ve worked on come out, but Test match rugby is unforgiving.
“We understand that, but I’m motivated and excited by this group.”
