Ryan Fortin, of 'The Harvard College Sports Analysis Collective' published an article (link) yesterday about this exact topic, and he believes the numbers he found support the idea of 'National TV Rondo'. I disagree. Let's take a look at what Ryan found (big props to him for breaking down the National/Regional TV stats for Rondo).
I decided to test this theory by compiling data over the past two years and running a t-test, using his non-nationally televised stats and his nationally televised stats to see if the two groups were significantly different. The results seem to back up the critics:RPG 6.8 5.3 0.1375
Stat Nat'l Televised Avg Non-Nat'l Televised Avg T-Test P-Value
PPG 16.1 13 0.1029
APG 10.2 11.6 0.8349
STL 2.3 1.8 0.1457
BPG .5 .2 0.0678
FGA 13.7 11.6 0.1183
TO 3.6 4.1 0.2699
All of his averages, including points, rebounds, steals, and field goal attempts are higher in nationally televised games. Though none of the p-values are below 0.05, and thus not “statistically significant,” the sample of games is small enough that we should still take notice — I think they can still be considered practically significant results. Interestingly, his assist total is lower, but the high p-value suggests that there’s not much to read into there.
It would appear Simmons is right — Rondo does play better when the most people are watching him. Whether it’s a positive thing that he can elevate his game in big contests or negative that he doesn’t play this way all the time is difficult to say, but it shows why Celtics fans often become frustrated with their talented point guard.
Ok, so on the surface it appears that Fortin's research checks out, and that Rondo does play better in Nationally televised games. After all his 16.2/10.2/6.8 splits in nationally televised games are clearly superior to his 13/11.6/5.3 splits in non-nationally televised games. That is a 24.6% spike in points, and a 28.3% spike in boards, which coupled with his 22% decrease in assists - shows a massive spike in aggressiveness from Rondo. However, I think that Fortin is missing what is actually causing this bump in aggression/production. It's not who is watching Rondo play, but the quality of competition Rondo is going against. In other words - the spike is caused by Rondo picking up his play against quality teams. The fact that some of these games against good teams are on national TV is just circumstance.
To prove this, I broke down Rondo's numbers over the past two seasons against playoff, and non-playoff opponents to see if we saw a similar spike in production. Considering many games against playoff teams are not broadcasted nationally (the Celtics play 19 nationally televised games this season, and 45 games against playoff competition), this should help draw a clearer picture of the true reason for Rondo's improved play. Here's what I found (I did not include playoff games as Rondo's minutes spike immensely during playoff time - thus skewing the data).
Non-playoff opponents (43 games): 10.8 points, 11.7 assists, 4.7 rebounds
Playoff opponents (48 games): 14.3 points, 11.1 assists, 5.6 rebounds
As you can see - that same production spike is visible. This time, Rondo saw a 32.4% spike in scoring, and a 19.1% increase in rebounds, while losing 5.1% of his assists. Now of course, those frustrated with Rondo for seemingly hitting the on/off switch depending on who the Celtics are playing are still going to be upset. And that's perfectly fine. What Fortin's study, and my numbers prove - is that Rondo does raise his level of play depending on the situation. However I would argue that this downside is still worth having Rondo on your team.
|As frustrating as he is, it's worth keeping this guy around|
Another reason he's worth holding on to, is that paying a guy who can reach his level of play just $12 million dollars a season is grand larceny in today's NBA. Guys with his pedigree and skill-set make $16-20 million, so paying Rondo 60-75% of that is a big win for Boston.
At the end of the day the ugly truth is that it is far easier to find 'grinders' like Courtney Lee and Avery Bradley who give their all every single night and help you win regular season games, than it is to find a guy like Rondo who can take over a playoff series. In an ideal world Rondo is watching his team have success without him, and has realized that he should bring his 'A-game' each and every night. But even if he doesn't - he's worth his contract because what he does in April, May, and June.
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Awesome job with the graphic by @wilkeduhn
Michael Dyer 3/14/2013 02:58:00 PM Tweet