"In our first meeting with Travis Green, he told us we were not good enough last year," Daniel told Sportsnet 650 on Monday. "We use that, we like that. He's honest with you. He's going to keep us accountable."
Last season, Daniel tallied 15 goals and 44 points in 82 games - his lowest point total in a full season since he posted 31 (with 14 goals) in 31 games during 2002-03. That was the twins' third season in the league.
Meanwhile, Henrik was a bit better, finishing the 2017 season with 50 points in all 82 games. That tied his 2014 production - when he played just 70 games. Still, 50 points is his lowest total in an 82-game season since 2003-04 (42 points).
Green's comments suggest there will be pressure on Daniel and Henrik to step up this season. Daniel says that every season, the twins approach training camp feeling that nothing is guaranteed.
"For me and Henrik, we always come in every year not expecting to make the lineup," he said. "We have to work hard in training camp. We have to come into camp in good shape. We have to be really good in the preseason games. That's always been our mindset.
"That needs to be the mindset for the young players too."