First, I'm by no means bashing the management strategies put forward by Demarais and Strickland. I know and respect both of them, as well as their ideas.
My point is where you ask about "consider this real world." Yes, it can be done, but it would be difficult in TN. And the problem isn't getting bucks to maturity. I know many will vehemently disagree with me, but I have to go with what I can document as true, and that is bucks are getting to maturity at near maximum rate in many parts of TN (not all parts, more more parts that hunters realize). The two biggest problems with implementing Demarais & Strickland's practices in TN are going to be:
1) Property size. Having photo censused many properties of all different sizes, I have some feel for how large a property would have to be before buck movements off the property during the hunting season could limit the effectiveness of the program. If a large portion of the buck population moves onto neighboring properties where they could face possible harvest, the effectiveness of the program could be severely limited. In my personal/professional opinion, the property size needed is at minimum, 2,000 to 3,000 acres.
2) No nutritional deficiencies. That's a tough order to fill anywhere in TN, or for that matter, anywhere in the country outside of the Midwest. Surprisingly, getting bucks to maturity isn't the tough part of local deer management, That's actually the easy part. Dealing with seasonal deficiencies in nutrition is the tough part. In much of TN, to adequately address that problem, you better have a really big budget. I mean a REALLY big budget. And the right land to start with.
Again, not questioning or bashing the management strategies suggested. Given enough of the right type of land, and a big enough budget to address year-round nutrition, would those management strategies work in the real world in TN? Oh yes, I believe so.