I agree, but I think it is easy to mis-read 'oversees every detail' to be 'micro-manages'.
By 'oversees every detail' I assume you mean "coaches who are detail-oriented in expectations but also delegate well...and hold people accountable for outcomes."
I feel that CGC thought he was doing the Saban thing by micro-managing his coaches, but in doing so he made all the decisions and found it very difficult to hold his coaches accountable since they were just doing what he told them. At least, that's what I believe happened based on comments I've seen.
You can delegate but you have to do so with accountability.
For example, when I ran a business, we usually had a large room organized by Dept (Adminstration, Finance/Results, Sales, Marketing, etc.) with metrics for each one. On each metric was the responsible person's name/picture, the metric, the historical trend, expected trend, and improvement plan. Current results were color-coded red/yellow/green. I could spend an hour there each week (alone) and review 50-60 kpi's, make notes, etc ... but ultimately, each person owned his own contribution to the business. That's managing but not micro-managing. My job was to set the target and review the improvement plans.
Collins, I think ... was trying to manage the offense/defense/special teams as part of his total brand, rather than a means to achieve a desirable result.
Bear Bryant once quipped that he could care less what offense or defense he ran, but he had a set of metrics around field position, time per play, and expected yardage that he wanted to achieve as part of his game philosophy. He left each coordinator to figure out how to do that.