What we know is that the Cowboys had the 31st ranked defense going into last offseason and didn't draft 1 player with potential to help them on that side of the ball. Instead they decided to rebuild an offense that ranked 7th and is stacked at every skill position. Should they had drafted Tyrone Smith? YES. But the rest of that draft should've been dedicated to filling some of the holes on defense.
Hard to complain about adding players like Tyron Smith and Demarco Murray. They did what the really good franchises do, they drafted the BPA's.
You have to ask yourself...Would this team had been better off if,
1. they had replaced Marc Coloumbo with Tyrone Smith and left the rest of the o-line intact?
2. they had then used at least their 2nd, 3rd, and 4th picks to revamp the defense?
Did you somehow forget how old and exposed the OL was?
We watched the Houston Texans and Denver Broncos do that exact thing and the Texans moved from #30 to #2 in total defense while the Broncos moved from #32 to #20. Both teams made the playoffs and advanced with very suspect QB play. It's just my believe that with the addition of T.Smith the O-line became more serviceable than what they had on defense. As it stands right now both the o-line and defense are the same as they were last offseason.
The Broncos and Texans also played pretty easy schedules when you consider the offensive opponents and the QB's they faced.
I like what the Texans are doing, but you also have to remember their defense basically had hit rock bottom. They did add a couple good players via the draft, but they also spent some significant $$$ on free agents. Wade is also a very good defensive coach.
But just because they were good this year, doesnt mean they'll be good next year. Our defense was as good as anyone's at the end of the 2009 season. There was no evidence to suggest they'd fall flat on their face in 2010, yet thats what happened.