Here's everything you need to know about McCallum:
Ray McCallum wasn't your typical McDonald's All-American coming out of high school. Despite getting recruited by power programs, he chose to play for his father at Detroit Mercy in the Horizon League.
He has gradually improved both fundamentally and physically over the past three years, but some of the same questions that were asked in 2011 are still being asked in 2013.
Detroit missed out on the NCAA tournament in McCallum's final year, but he did average a career-high 18.7 points, along with 5.1 boards and 4.5 assists.
McCallum has broad shoulders and an NBA frame at an average 6'2" height. He's not very long, but he can get up. He registered a 40" vertical at the NBA Draft Combine, illustrating his above-the-rim athleticism.
With a quick first step and good speed in the open floor, McCallum's physical tools should work in his favor during the transition process.
McCallum was Detroit's primary scoring option and facilitator. He was the offense. And over the last three years, we've seen his confidence rise because of it.
He's got a diverse offensive arsenal with the ability to take over as a scorer or showcase his natural playmaking skills as a point guard.
McCallum always seems to be under control. He shot 49 percent from the floor as a junior—a really impressive number for an 18-point-per-game guard. And with only 2.1 turnovers committed per game, he values the basketball.
His poise stands out, and it's something that increases his appeal as a potential NBA point guard.
Off the dribble, he's capable of pulling up, stepping back or attacking a driving lane.
Dynamic Open-Floor Playmaker
McCallum is dynamic in the open floor, where he's able to get himself easy buckets or create them for teammates.
With room to run, he's not afraid to get out on the break and push the ball. He has the shiftiness to change directions at full speed and keep defenders off-balance. And with his hops, he's capable of finishing over the rim instead of having to rely on touch.
McCallum's main focus moving forward has to be facilitating in the half court. It's tough to evaluate and criticize given his role at Detroit, where he was asked to score first and pass second. But his role at the next level will be reversed.
McCallum never averaged five assists in any season at Detroit. Improving in pick-and-roll situations and breaking down the defense will be priorities moving forward.
Another glaring weakness is his inconsistent jumper. McCallum shot just 32 percent from downtown this past year, which was actually a career high.
It's not to say he doesn't have an outside shot. He can certainly knock them down, he just has to do so with more consistency.