If chief of staff Gen. John Kelly persuaded Trump to dump Bannon as part of his effort to reorganize a chaotic White House, we'll take it as a small sign that the president can, at least when desperate, accept sensible advice. We hope that Bannon's departure opens the way for Kelly to take more control and impose discipline on this reckless and undisciplined president. If not, we expect Kelly won't last long in the West Wing, either.