Mon Apr 23 15:01:25 EDT 2012

Resist structure

Existing structure that can't reflect a new requirement is always the
cause of development slowing down.

Is there a way to avoid it altogether?

Does that make sense in any way?  Probably not.  What's the closest
point that actually makes sense?  Make structure as general as
possible?  For every constraint (== structure) provide maximum
flexibility == keep things orthogonal.