Where he will impress: McGee's athleticism and build give him the look of an NFL lineman who could contribute.
Where he will underwhelm: McGee will have several off-the-field issues to answer for. He was suspended the first six games of his senior season, then missed the Cotton Bowl after a DUI arrest. McGee was also arrested for marijuana possession before his junior season.
What he can gain at combine: In interviews, he'll need to show humility and honesty regarding his disappointing college career and the non-football issues that caused it. A good showing -- combined with his natural skills -- could entice a team to take a late-round chance on McGee.