Roy Greenslade is arguing that many,
probably most, sub-editors are no longer needed. I disagree. Seems to me that in all the new media experiments (wikipedia, for example), the role of editor/sub-editor subtly reinvents itself, no matter what you call it. He is right that big changes in thinking are needed, but I think we still need subs.
Certainly I wish I had one on this blog, to save me from the typos, if nothing else.
UPDATE: Greenslade has written another post
on this issue, responding to furious critics.