One Team, One Stat: The Thibs Effect


VIDEO: Schuhmann’s Advanced Stats: Chicago Bulls

NBA.com’s John Schuhmann gets you ready for the 2015-16 season with a key stat for each team in the league and shows you why it matters. Today, we look at the Chicago Bulls, who continued to do one thing really well defensively.

The stat

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The context

20151025_chi_basicsFor the second time in Tom Thibodeau‘s five seasons as head coach, the Bulls were the best in the NBA at defending the easiest shots on the floor. League-wide, restricted-area shots yielded 1.20 points per attempt last season. Against the Bulls though, that number was just 1.12 points per shot.

Among 98 players who defended at least 250 shots at the rim last season, Taj Gibson (45.5 percent, ninth) and Pau Gasol (48.0 percent, 22nd) both ranked in the top 25 in opponent field goal percentage there.

The Bulls didn’t just defend shots at the rim well, they were also above average in regard to preventing them. And they were the best in the league at forcing mid-range shots (31 percent of their opponents’ shots came from between the paint and the 3-point line), the least efficient looks on the floor. That comes, in part, from being the best at keeping side pick-and-rolls from getting to the middle.

In all five of Thibodeau’s seasons in Chicago, his team ranked in the top five in effective field goal percentage defense. And keeping your opponents to a low effective field goal percentage is the most important thing you can do defensively.

But the Bulls fell out of the top five in overall defensive efficiency last season for the first time in Thibodeau’s tenure, because they ranked 29th in forcing turnovers and didn’t rebound as well as they had in the past.

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New coach Fred Hoiberg has put in a new offense and could go with a starting frontline of Nikola Mirotic and Pau Gasol for additional floor spacing. But while there’s potential for an improved offense, there’s also potential for more regression on defense. Mirotic ranked as one of 10 worst rim protectors among those 98 who defended at least 250 shots at the basket last season.

Pace = Possessions per 48 minutes
OffRtg = Points scored per 100 possessions
DefRtg = Points allowed per 100 possessions
NetRtg = Point differential per 100 possessions

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