What are the motifs in The House of Morgan by Ron Chernow?

Change is a recurring idea. The House of Morgan has to change as the world changes. No business can survive if it doesn't change with the times. The need for change is often a problem for the various Morgan operations. The House of Morgan is steeped in tradition which is why change is sometimes so difficult for them. For the most part, they cling to their tradition and resisted change as much as possible and to the last moment in some cases, as with the Glass-Steagall Act. They begin as a Victorian England firm and Morgan Grenfell, the London office, hangs on to that mentality as long as they can.