Ausar Thompson of the Detroit Pistons has looked fantastic in NBA Summer League so far.
Summer League is filled with great players fighting to make it into the league. A lot of guys have motivation, and a lot of guys play hard. However, not everyone on the floor will be an NBA player, and quite a few will never make a rotation.
Summer League competition is much more intense than it used to be. When Tim Duncan played after being drafted, it was unusual for a first overall pick to attend Summer League. Today, the competition in the NBA is so fierce, the skill level so high, and draftees are often so raw, that Summer League is a necessary opportunity to develop.