I think his point was that Rondo isn't able to make mediocre players better (as, for example, Magic and Bird could)...but plays very well with players who are already good themselves. So, the theory conveniently skips the last couple years! He did include statistics which demonstrate value with the Big 3, so don't fully agree he fails to illustrate the 'amplify goodness point' since what's cited reflects team stats.
Personally, I think he just hasn't has his heart in it the last couple of years and I think that's quite worrisome overall. But I am willing to believe that fully motivated he can be the impact guy he was in the late Big 3 era, too...and I think that's what Mavs are curious to see. I think 15 years or so of heavy baseball analytics has proven to us that there's plenty we don't know at any point in time, and we should be aware of that for basketball metrics right now---which are at about 2006 or so in baseball analytics terms.
Personally, I think he just hasn't has his heart in it the last couple of years and I think that's quite worrisome overall. But I am willing to believe that fully motivated he can be the impact guy he was in the late Big 3 era, too...and I think that's what Mavs are curious to see. I think 15 years or so of heavy baseball analytics has proven to us that there's plenty we don't know at any point in time, and we should be aware of that for basketball metrics right now---which are at about 2006 or so in baseball analytics terms.