Luke Grimes believes the ‘Yellowstone’ cast rose to the “challenge” of replacing Kevin Costner. The 69-year-old actor exited the hit TV show midway through season five – but Luke has now suggested that the cast rallied together to overcome the setback. Luke, 40 – who plays Kayce Dutton in the drama series – told E! News: “It feels like every year there’s been some crazy new challenges, not unlike this year. There was a big, new challenge, but, you know, challenge accepted.” Luke added that season five of the show “was absolutely incredible and couldn’t have been better any other way”. Kelly Re…