(Bloomberg) -- When Roberto Sallouti says his bank, Brazil’s Banco BTG Pactual SA, is diversifying revenue, he really means it.  Ten years ago, when Sallouti took over as chief executive officer, sales and trading made up the bulk of BTG’s revenue, with corporate lending, asset and wealth management much smaller slivers of the balance sheet.  Now, lending alone is a 7.6 billion-real ($1.4 billion) business, which last year overtook sales and trading for the first time. The bank’s assets under management ...