Adebo will be a good corner. He has some limitations in his hips and can get beat by speedier guys but he'll learn to guard against that as he matures.
Roby may be the better player but he's A - Still learning the playbook and B - has hit his ceiling. This early in the season and in most cases you lean towards developing your young talent UNLESS that talent has obviously crashed and burned.
Adebo had a solid first 3 weeks and then this game he got picked on.
That's not really a crash and burn, that's one bad game out of four and doesn't indicate a pattern. I say continue to allow him to develop. He's not the only CB that was torched that day, the entire secondary had a meh game with that exception being Marcus Williams. CJGJ, Jenkins, Lattimore, Adebo....all had their struggles.
Roby is a good safe switch should Adebo hit a wall