Caldwell is a player who will help the Dawgs. I saw somewhere that he has been compared to Joe Johnson. I think that that's a fair comparison. No, Caldwell has not played a game of Division One basketball. However, he reminds of Johnson in the sense that he is a big guard with range from deep and enough of a handle to take it to the basket going either to the right or left.
With a strength and conditioning program at the college level, Caldwell should be able to bulk up a bit and boost his vertical jump. He doesn't have incredible leaping ability right now, but he is just going into his senior year.
Kudos to Dawgpost.com for breaking the story and providing a free article.
Here's a youtube video of Caldwell.