That's pretty much right on point. Al Davis was stuck in the past and always wanted speedy receivers, because that's what he had success with.
Jerry Jones is stuck in the past and he always wants his triplets, because that's what he's had success with. Yes those 90's teams had Aikman, Irvin, and Emmitt, but they also had a top ten defense every year they won. And that's the part Jerry is missing. Those defenses were good too.
So in the salary cap era you have to do what the Patriots done. Find a franchise QB, give him a good offensive line, then build up on the defensive side of the ball.