Hollinger espn insider scouting report :
Minuscule basketball IQ. Blocks shots but takes bad gambles and goaltends often.*
Defensively, the Nuggets developed him more in two months than the Wizards did in four years, but he still has a ton of work left. McGee is a potentially dominant shot-blocker but has no filter -- he tries to block everything, even if he's 20 feet away or the ball is obviously on its way down. He also has a high center of gravity and struggles to keep opponents out of deep post position. As a result opposing centers blistered him in both stops, registering a 21.2 PER in Denver and a 21.8 mark in Washington, according to 82games.com
Additionally, McGee's rebounding stats are a lie: For a good rebounder, he has a massively negative impact on his team's overall rebound rate. Denver rebounded just 68.4 percent of opponent misses with him on the court, compared to 72.4 percent with him off it; similarly, Washington's rate dipped by 5.4 percent with McGee on the floor. That's a pretty massive difference considering 6.9 percentage points separated first from worst last season. Again, his mental game is the cause: McGee doesn't block his man out and often leaves the board exposed to go for a block he has little chance of getting.*