Flanker Courtney Laws says Northampton’s narrow loss to Leinster in the Investec Champions Cup semi-final shows they have the potential to become one of the best club sides in the world.
Leinster won 20-17 in front of more than 82,000 people at Croke Park, but were pushed hard by Saints who came from 20-3 down to set up a thrilling finish.
Rose says Saints need to draw on that experience to become a leading force in club rugby.
“Many players have never played in front of such a large crowd,” the former England captain told BBC 5 live.
“It takes time to get to a stage like that. It’s a great experience for the players to develop themselves and understand what it takes to win at the highest level.”
Saints legend Rose, 35, will leave Northampton to join the Brave in the summer after 17 seasons at Franklin’s Gardens.
“We have proven [on Saturday] “We have what it takes to be one of the best teams in the world,” he added.
“It’s now up to us to move forward, it’s up to me to progress to the end of the season and the players beyond.
“I’m looking forward to seeing how far the players can go.”
Rose hopes his performance in the Champions Cup and experience in knockout rugby will be of benefit to Saints as they aim to win their first Premiership since 2014.
Phil Dawson’s side hold a four-point lead at the top of the league with two rounds of the regular season remaining.
“I’m not doing anything flashy.” [in knockout games]really just executing the basics and playing the game on the field,” Laws added.
“We continue to learn and hope we can get the right results towards the end of the season.”