I have always campaigned that a great offensive line is the cornerstone for all great teams. The Cowboys never won a Super Bowl without a great offensive line. I consider the offensive lines for the 71 team (SB VI) and the 95 team (SB XXX) to be legendary. the 92-93 lines are slightly below with the 77 line taking up the rear.
I would not bother me if Dallas took an OT in the first round of next year's draft as well - they have been successful picks as of late.
It used to be the Cowboys were successful in the 2nd and 3rd rounds taking O-linemen (Allen, Adams in the 2nd & Big-E, Stepnoski in the 3rd). The Cowboys have busted in the 2nd & 3rd rounds for O-linemen since the turn of the century.
Bottom line for me: I want my Great Wall of Dallas back! The Cowboys are well on their way to achieving that.