You’re ignoring the question.
If the Boys had drafted Unger in 2009 why would they have any interest in an inferior player for the same money?
Again, I'm not saying they should sign Levitre if they have Unger on the team; although, there would be no reason not to sign Levitre. Unger alone would not resolve all of the Cowboys OL issues.
The point was that Tennessee has Levitre and Seattle has Unger and both received similar amounts of guaranteed money, yet no draft pick was required by Tennessee.
I agree the Boys make mistakes in re-signing players but that’s usually because they haven’t drafted an adequate replacement which is why you can’t say they draft well (the theme of this thread is it not?).
Equally if the Cowboys make these mistakes with players they know well, how much more likely is it that they make the same mistakes with ones they don’t know as well?
The point is that the Cowboys did know those players and still made mistakes which refutes your contention that there is a great
risk benefit to re-signing your own player vs a free agent even if the money is similar.
But if picks made more than 4 drafts ago have very low value in 2013 (your words), where are teams to get the players that have value from if not through free agency?
The fact that the player was that team's own draft pick is of low value, not the actual player. I'm just rating that player's value relative to another player that will receive a similar contract but was not the team's own draft pick.
Example: You and another person lease the exact same year, make and model of automobile and drive the same number of miles. The other person turns their auto in and leases another one. You decide to purchase. The lease company offers to sell you the auto you leased or the auto that the other person leased. The auto(s) each have a dollar value of 20k. Is there a
significant advantage to buying the one you leased vs the one that was leased by the other person?
In the example the auto, like the player has value. The fact that you originally leased the auto vs someone else originally leasing the auto is of minimal value.