During his days with the Arizona Wildcats, Derrick Williams excelled as a power forward whose ability to score inside and outside kept defenders on their heels.
In fact, he was so successful at the college level that the Minnesota Timberwolves selected him with the second-overall pick in the 2011 draft.
One year later, the 21-year-old's progress demands a mixed assessment at best. He averaged 8.8 points and 4.7 rebounds per game, but played just 21.5 minutes and seemed an awkward fit on the roster.
The difficult transition had a lot to do with the fact that the Timberwolves already have a pretty good power forward named Kevin Love. Williams wasn't about to cut into the All-Star's minutes, nor was he at all prepared to become a full-time small forward.
It should come as no surprise that this summer is an opportunity for the forward to carve out a consistent role under head coach Rick Adelman.
Williams slimmed down in order to spend more time at the small forward position and get out from behind Love's shadow.
Of course, he's not the only young prospect who's had to adjust his game at the next level. Nor will he be.
Here are five rookies who may have to do the same this season.