Marcus Smart is a warrior and a leader. He's the guy this team rallies around when things get tough. Some players have it, too many don't. He may not score enough to keep us all happy just yet, but he is a rough, tough, talented defender, that leads by example.
I agree with many, the IT-Bradley backcourt is just too small. As fine a defender as AB is, he has trouble defending large SG's. Thomas is a less than average defender at best, easily shot over. Many teams are now preparing for the IT's game, their putting physical pressure on him. He's so small it's working. When his shot isn't falling, he gets very reckless.
Thomas is best coming off the bench.