One of the mega-themes of the economy is that the big keep getting bigger. You see it in technology, where the megacap software companies are outperforming their smaller peers. And you see it in finance, where the world’s biggest banks keep growing their share within the industry. Across multiple fields, there are clear advantages to size and scale that keep accruing. But what does it take to get to the very top, and what are the real advantages to size and scale? PNC Financial is one of the big