http://www.basketballanalyticsbook.com/2016/02/12/trading-tobias-harris/
The pick and roll has become a staple of the modern NBA offense. Teams average between 16.7 and 31.6 possessions ended through a pick and roll scenario (according to NBA.com). The Orlando Magic fall squarely in the middle of the pack with 26.4 possessions per game committed to the pick and roll. This means that about 26 of the Magic’s possessions end with the ball-handler or roll man in the pick and roll taking a shot, turning the ball over, or getting fouled.
In other words, about 25% of the Magic’s offense is generated through a pick and roll.
As a significant portion of the modern NBA offense, it’s impossible for an offense to be highly efficient overall without being moderately efficient in the pick and roll.
Overall, Orlando scores 0.82 points per pick and roll possession. That ranks 27th in the NBA. (The Warriors are first at 0.95 points per pick and roll possession).
Orlando has been poor in both ball handling and rolling in the pick and roll. They rank 26th in ball-handler efficiency at 0.74 points per possession and 20th in roll man efficiency at 0.99.
Nikola Vucevic has been arguably the worst featured roll man in the NBA this season. Of the 36 players that have had at least 100 roll man possessions, only Milwaukee’s Mason Plumlee has been less efficient. Vucevic is averaging a very low 0.9 points per roll man possession. Plumlee is averaging 0.88.
Without a capable roll man most of the time, we wouldn’t expect Orlando’s ball handlers to be particularly efficient off screens. Most of them aren’t. But one of them has! Harris is averaging 0.88 points per possession. That is better than 28 of 30 NBA teams are averaging!
There are 139 NBA players with more than 50 ball handler possessions this season. For each player we took their points per ball handler possession and subtracted their teammates’ combined points per ball handler possession. The following table displays the top 15 in this difference.
Curry is a remarkable 0.38 points per possession better than his teammates. However, he is not underutilized. In fact, only one player in the top 15 can be considered grossly underappreciated in his team’s offensive design. Harris ranks 13th in the league. He is 0.15 points per ball hander possession better than his teammates. Yet, he only sees this type of possession once every 27.3 minutes. Everyone else in the top 15 sees ball handler possessions at least 3 times that rate.
Harris is arguably the most underutilized ball handler on pick and rolls in the NBA.
Orlando’s opponents are shooting 60.6% when within 6 feet of the hoop and when Orlando has a defender in position to defend the shot. That percentage ranks them 22nd among defenses in the NBA.
Vucevic is one of the NBA’s worst primary rim protectors. (By primary rim protector, I mean the player on the team that averages the most shots defended at the rim per game.) Vucevic is allowing opponents to shoot 59.2% against him at the rim. That’s 28th in the NBA among the 30 primary rim protectors.
Vucevic is holding opponents to a FG% that is 1.6 percentage points below what they would normally shoot. That sounds like he might be helping the defense, but it’s actually quite poor among big men, which usually decrease opponents’ FG% by a lot more.
Interior defense is a team activity. No one player is solely responsible for the team’s performance. However, a rim protector like Rudy Gobert or Whiteside can dramatically improve a team’s interior defense. In spite of not having the help behind him, Tobias Harris has been a remarkably good interior defender for the Magic this season.
Look at the table below which displays the numbers for the six Magic that have started at least 20 games this season and that play significant minutes with Vucevic. Harris’s defense has lowered opponents FG% from their usual 60.8% to 55.4%. By comparison, opponents are shooting at least 8 percentage points better against Oladipo or Payton than they usually shoot.
With Vucevic off the court, Orlando has a Defensive rating of 101.0 (per Basketball-Reference.com). A DRtg of 101 would be good enough for 2nd best in the NBA. Unfortunately, with Vucevic on the court, Orlando has a defensive rating of 108.2. It’s hard to imagine Orlando playing elite defense with Vucevic on the court.