The Colts made 10 picks in the 2019 NFL Draft. In that draft, they took 7 defensive players. They clearly thought there needed to be an upgrade in the defensive quality, so they made an effort to fix that. But in doing so, it creates an immense amount of competition.
The competition will be fierce along the front seven. The Colts have a new defensive lineman in Justin Houston and three new members of the linebacking corp. That corp will have to fight amongst the current players for the right to play alongside Darius Leonard.