This is fascinating

The following evaluation (scroll down about halfway) of Boise State's Derricks Marks amply demonstrates the gap in talent level between being in the NBA and being a solid college scorer.

...Measured at 6'3”, 206 pounds, Marks will not wow scouts with his physical attributes. He has an average build with only decent speed and acceleration. He doesn't have tremendous explosiveness and because of this, he struggles to finish consistently in the paint at the Missouri Valley Conference level. Marks finds crafty ways to score for Boise State, but he may struggle to replicate this in the NBA against more athletic defenders.

Due to his lack of athleticism, Marks struggles to get to the rim off the dribble which causes him to settle for mid-range pull up jump shots. He does shoot well off the dribble, converting 44% on such shots according to Synergy Sports, as he is great at squaring to the rim and getting on balance for his attempts. Marks is able to offset some of his struggles of getting to the rim by possessing an excellent series of ball and shot fakes, which allows him to get to the line 7.6 times per 40 minutes pace adjusted...

and

...Defensively, Marks is a liability at this point in his career and will need to make some major leaps to become a serviceable defender going forward. Marks is already at a disadvantage due to his below average physical tools, and he compounds the issue with poor footwork and awareness. He often runs into screens or take poor routes around them due to having tunnel vision on his man and not recognizing the screen being set on him.

Marks pressures the ball well, which helps him force 2.4 steals per 40 minutes pace adjusted . However, he has poor footwork when moving laterally which allows offensive players to easily beat him off the dribble. He can sometimes be lazy playing defense off the ball and teams will want to see him put forth better effort on this side of the court...

This is not to say Marks won't find himself in The Big Show if he closes his gaps -- it's more to demonstrate what we as fans are oblivious to when watching a game.