My Philosophy is most Worthy. I truly believe if you draft for need you get burned. And if you draft 4 best on board you don't feel the position of need. Most Worthy is a combination of three aspects. Talent need fit
The trap of drafting for need is you'll start engaging in motivated reasoning on the player's quality when you need a player at that position.
But you still need to balance quality vs. need to get the best outcome for the team. It's not fantasy football. It's a team.
I'm sure "it's a process" when it comes the how the Cowboys try to balance concerns over need and quality.
They probably try to separate out those concerns institutionally, with the scouts entirely unconcerned about the needs of the team, and therefore more objective about the quality of players. And where there is disagreement, people need to make a case. They probably have standard evaluation templates and checklists.