I'm guessing the Colts may value 2019 picks a bit more than expected/other teams. They have the 6 pick and three seconds already this year. Just a guess but if they truly want to move down again, they might desire adding one this year and one next to diversify a bit. That would give them 5 picks in the first two rounds this year and 5 next.
I'd still be surprised if they passed up Chubb/Barkley if there. Maybe they could get a guy like Smith at 12 but they would be afraid of Miami at 11, no?