This article by Terry Eastland ends with the following interesting comment on the effect CJ Roberts is having on the Court:
"The other day Justice Breyer told an Alabama audience that the justices discuss cases more under Roberts than they did under Rehnquist. Roberts is surely responsible for that, and it marks an important change.
Justices Stevens and Scalia have both complained over the years about the conferences held on the Fridays of weeks with oral arguments. It is then that the justices at least tentatively decide cases, and yet under Rehnquist the justices typically did little more than declare their votes. For Roberts to invite discussion means that Roberts himself has to come to the conference table fully prepared. That's not hard to imagine. But the other justices have to come prepared as well, or risk embarrassment.
Over time, the Roberts effect may produce not only larger majorities and more stable rulings but also a Court that, thanks to conferences that really are conferences, pays more attention to working out the relevant law and less to mere politics. The distinction between law and politics is, of course, precisely what Roberts (and Samuel Alito) insisted upon during their confirmation hearings, and it lies at the heart of judicial conservatism. The prospect of the continuing advancement of that philosophy is a happy one, and a reason to say hail to this particular chief."