Not all properties will benefit from these activities.
So trapping nest predators during nesting season won't help on any given property?
Maybe it's better stated this way;
Some areas that have always had turkey - more than likely always will - and will have them without any of the management tools talked about in the OP. Those areas tend to have huntable populations even with changes in land use and timber structure.
And unfortunately, some areas can implement every management tool available, and never spend their way to having large populations, despite having what is viewed as great habitat.
I've said this for a while and it goes largely un-noticed, mostly because it's not popular. Everyone wants to be able to do something and see results.
