WBL, you are asking a loaded question, depending on the size and complexity of the bank, and the assessment area.
CRA is many things, like referenced above. While it is lending, it is also outreach, planning, investments and marketing. You could have a great lender with a horrible personality - they would not be a good CRA officer. The bank could also have a great marketing person who has no concept of loans or investments (if you could remember the show WKRP in Cincinnati - think Herb Tarlick) with the same outcome. Someone great with numbers and write-ups may have no concept of lending outreach or investments.
Depending on the size of the bank, it may be a department processing the information, with one designated spokesperson. You have been given a lot of great ideas here - unfortunately, it's something that needs to be tailor made for the bank, and the market.
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Integrity. With it, nothing else matters. Without it, nothing else matters.