Large parishes, perhaps too-large, are challenges south of the US. Sometimes the parish is spread out over a large geographical area, perhaps as large as a US county or several, with dozens of worship sites or chapels. Lay leadership would seem to needed for these two initiatives from section 517.
e) Transform parishes increasingly into communities of communities.
f) Be more intensely devoted to the experience of communities of common interest formed at the supraparroquial and diocesan level.
For deeper examination, an English translation of the 2007 document from the Aparecida Conference.