Here's my take: Remembering when multiple shutouts per year were expected and delivered. Pride comes from overachieving. The defenses in the heyday were not satisfied with simply a win. From what I've seen lately, is a win is a win attitude. Let up near the end of the fourth quarter, if they score so what, we got the win. Regenerating this prideful mentality would loom large in our recruiting posture.
BTW, the reason the slipover jerseys were used was they were on sale. Could have just as well been known as the "yellowshirts"