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Can the Cavs play good enough defense to win a title?

The Cavs haven't been a great defensive team this year. Will it stop them from winning a championship?

Ken Blaze-USA TODAY Sports

The Cleveland Cavaliers are an elite offensive team. According to, the Cavs have the second most efficient offense in the NBA this season. Since January 15th, the team is scoring 111.5 points per 100 possessions, easily the best in the league. Only the Los Angeles Clippers and Golden State Warriors are in the same ballpark.

The team employs LeBron James, Kyrie Irving and Kevin Love. It makes sense.

But the defense has been another matter. Overall, the has the Cavs as the 18th best defense in the league. A popular talking point tends to follow the logic that it's extremely difficult to win a title if you don't have a top 10 defense.

So the Cavs are in trouble, right? Well, maybe. There are a couple different ways you can look at it. This post from Eraulli is a must-read, and comprehensive look, at what it takes for teams to be true title contenders. A couple conclusions he drew from the data:

You can't ignore one side of the ball. Only 3 times in 35 years has a champion been below average on one end of the floor: the 1993-94 Houston Rockets (-0.11 Off / +1.48 Def), the 2003-04 Detroit Pistons (-0.26 Off / +2.13 Def), and the 2000-01 Los Angeles Lakers (+1.73 Off / -0.57 Def).

You can be merely above average on one end. 16 champions had an offense less than one standard deviation from the mean. 15 Champions had a defense less than one standard deviation from the average. In most cases, these teams were elite on the other end of the floor.

The Cavs aren't in the top half of the NBA defensively for the season. But like so many things with the Cavs season, January 15th does represent a bit of a turning point. The Cavs welcomed back a healthier LeBron James, and have worked in additions J.R. Smith, Timofey Mozgov, and Iman Shumpert. All four have been helpful to the Cavs defense. The results have been positive, if not overwhelming:

So the Cavs have been better, and even have a top 10 defense over 38 games. But this isn't a shut down defense, and while it hasn't been an easy schedule, the playoffs provides a different challenge. Teams with more experience and more chemistry and more continuity have a leg up. The Cavs are still getting to know one another. Having a slightly above average defense does not mean that you always play slightly above average defense. It means some nights you might be above average, and some nights you might be bad.

What the team does have, though, are more good defenders. LeBron James is not a consistent elite defender anymore, but he can turn it on for five and six minute stretches. Timofey Mozgov provides a physical presence and changes shots. Iman Shumpert disrupts passing lanes and plays with energy. J.R. Smith has been dialed in. Tristan Thompson has improved throughout the season and is competent against different kinds of players.

The presence of these guys has made things easier for the Cavs who aren't good defenders. Kyrie Irving has looked much more comfortable funneling his man into Mozgov on PnR's than he has before on defense in the NBA. Kevin Love's post defense is fine, and when his back has been right he's been predictably great at rebounding. Without an elite defender, it's going to be an all hands on deck situation for the Cavs. Everyone must pull their weight. This is where the lack of continuity could hurt. Eventually, this Cavs team could become a very good defense. Guys will gain trust, understand rotations, maximize strengths.

Perhaps most encouraging, though, is looking at the top defensive lineups the Cavs have put on the floor since January 15. If you look at three man combinations that have logged over 300 minutes together since then, you'll find that the best defensive lineups the Cavs have put on the floor include Irving and Love alongside Timofey Mozgov. Those three with any other combination of Cavs players are giving up 95.6 points per 100 possessions in 579 minutes. The second best combination is Shumpert, LeBron, and Thompson. In 318 minutes they are giving up 95.8 points per 100 possessions. Those are elite numbers, and seem to indicate that David Blatt can manipulate lineups to get defense both with the starters and bench.

My gut tells me it's going to come down to what kind of playoff defense the Cavs can get from Timofey Mozgov and Tristan Thompson. Overall, I think both are average to slightly above average defenders. I think they have plus skills that complement each other very well. But whether teams can exploit their weaknesses (Tristan's rim protection relative to other centers and ability of certain players to shoot over him, Mozgov's lack of mobility, slow feet, and, maybe, foul trouble) or whether these guys rise to the challenge may swing the Eastern Conference Finals, and, perhaps, the NBA Finals.

We will see.