One, perhaps not "the", biggest change in perspective is that back then there were far fewer golf architects working and very likely a near "black and white" distinction between those knowledgeable and those not knowledgeable. Today there are many more golf architects and there are many shades of grey — some knowledgeable, some fairly, some not so fairly, some better in one specialty, some awful, some great, etc. Also, there are many more layers of decision-making at hand. This affects perspective as the entire process of getting hired may not be based on reputation or portfolio, but partially on politics, competition and marketing acumen.