Not quite sure what everyone saw when they watched McCallum, but I'll tell you this, he's far more impressive in person than he is on TV. But that aside, I guess its a matter of personal taste. In my humble opinion, McCallum comes the closest to being a pass first PG than any other PG, not named Vasquez on the team. He's an excellent ballhandler, and a very good athlete. In at least two of the games he made nice passes that should have resulted in assists, but no one could convert a damm basket. I understand why they're high on him. He has very good size for the position. He's athletic, and has very good court vision, and he's a solid passer.
So here's the question? If he's what your looking for, then what difference does it make if he was taken in the second round or not. Is that some sort of brand you get if you slide out of the first round. Whats wrong with signing him for three years, especially at chump change if you really believe he's the real deal. Vasquez is a restricted free agent after this year. If McCallum is what they think he is, then he's insurance against losing Vasquez. And if he is the real deal, you've got him for peanuts for three years. After watching him up close and personal, I believe in all likely hood, and given the time, He'll be the best defensive PG on the team.
And if not, then what have you really lost? Very little money wise, and he'll at worse, be a nice throw in, in a trade. He's the least of my concerns with this team.