Roberts to Chief

Make of it what you will: John G. Roberts is now the candidate to become the next chief justice of the Supreme Court. The elevation has two advantages: Roberts' superhuman inoffensiveness means Rehnquist's seat will be filled quickly; and since Sandra Day O'Connor has promised to stay on until her seat is filled, that leaves no gaps for the time being. This second part, however, suggests Team Bush doesn't have a lot of depth at this position. Also, I don't know how eagerly Supreme Court justices seek advancement, nor do I know what's so much better about being Chief Justice rather than being an associate justice, but won't Scalia or one of the other Chief frontrunners be disgruntled at having a judge with two years' experience put over them?