Actually, your post is the misnomer.
Even after Aikman went down they didn't invest heavily in the QB position, that was the issue. Not that they didn't groom someone while Aikman was still here. That is something that is extremely difficult to do and outside of a few times, we rarely see that happen with franchises.
They immediately scrambled to use a second round pick - the highest trader Jerry had left after the Joey Galloway debacle - to roll the dice on Quincy Carter, with the expected horrible results.
They then tried to cheat the system again with baseball failures like Drew Henson (3rd round pick) and Chad Hutchinson, with the expected horrible results.
Bill Parcells then tried to correct it by signing his aging, former quarterbacks in Testaverde and Bledsoe. Only the good fortune of Sean Payton bringing in Romo has gotten them off of the merry-go-round of futility. And since finding that diamond in the rough, the Cowboys have done little or nothing again to plan for their future, with the expected horrible results. How soon some people forget.
Wasting resources on a QB who won't play until their rookie contract is up, is not good strategy.
And now, some people want to "waste resources" on one of the most common-found commodities in football with the #4 overall pick?
Most of the league doesn't even draft running backs in the first round and yet some people want the Cowboys to do it at #4?
In a league where Sam Bradford will make $18 million this year and the top free agent running back costs $5-$6 million, some people want to draft a running back at #4? And pay that guy over $4 million a year?
In a league where teams don't even get a shot at mediocre quarterbacks, some people want to draft a running back at #4?
Really?