The fact the Cowboys often hold onto players too long and don't use FA is a big reason why they are low in cash spent. Now you can call that smart if you want but the reality is the Cowboys literally are near the bottom of the league in terms of actual cash spent on their roster over the periods discussed in that BtB article.
This is the team. It likes to resign players it develops. On the second year contract they are given generous terms forcing the team to consider "sunk costs" and sticking with them longer than they should have.
They seems to hold the player's feet to the fire on the rookie contract in a "prove it style" approach, then when it comes time to wrote up the second contract they give the player a reward, and the "prove it" handcuffs come off.
It's an individual based approach to talent acquisition when maybe they could take a more team approach to development. I don't know what is the actual secret sauce to the mix that gets a NFL team to the SB on a regular basis besides an "all-world" QB. See Brady and Mahomes.
But I am leaning towards building a strong team as opposed to building a strong roster based on the 29 years of less than desireable results.
The other part that is curious to me is: Jones - Campo, Jones, etc, etc, etc. How has that dynamic played out in terms of building strong teams, and weeding out players who are not a fit in culture and performance for winning SBs?