Charlotte is practical and a realist. She understands the charecter of Mr Collins well, one of the reasons she employs 'husband management' techniques to discourage his presence. I know Ch. 32 ends "In her kind schemes for Elizabeth,...Mr Darcy had considerable patronage in the church." If Charlotte is thinking in terms of how marriage to Darcy could advance the Collins' then it was possible for a clergyman to have two livings, or she's possibbly thinking of living in another richer parish away from Lady C. But she must also be a good pragmatist and compromise. Even in an Age where advancement depends on connections rather than merit, the charecter of Mr Collins does not lend much to recommend (particularly if his own wife discourages his presence) and we know his manner 'offends people.' For Charlotte's sake, Darcy may recommend Mr Collins for a wealthy parish but I doubt he'd recommend his promotion within the church. I thinnk the system of Church patronage was like this; In the Eighteenth and early Nineteenth centuries, when a living 'fell vacant' a clergyman could write to influential gentlemen of the area and ask them to recommend them to the Bishop or Canon who distributed a number of livings. Sometimes a Canon or gentleman had his own candidate, perhaps a distant cousin? Church patronage showed the influence and sometimes wealth of a gentleman in his locality and with higher ranking clergymen.