First of you are one of the most annoying and lazy people on this site. See problem with your kind is you come to argue with fallacy. He isn't getting paid 6M this season, it's over 9M. So he is extremely overpaid. 3 times overpaid your original value. We just signed Kony Ealy who is another JAG who could easily give the same production that we've gotten from Crawford and it will only cost the league min or a little more.
A backup LT or (swing tackle) as you like to put it cause it makes it sound cheaper is ridiculously more important than a backup defensive lineman at any position. Again, this guy that was signed to a huge 10M a year deal to be the teams always important DT3 Tech has been kicked outside by another 3rd rounder in Malik Collins. Then he lost playing time to a rookie and a real DE in Taco later in the season. Guys a JAG. A JAG getting grossly overpaid.
Now who the **** is Bob Sturm and what the **** is a splash play metric. Sounds like a made up judgement thing to me, and if this guy is a Cowboys homer and apologist like you chances are he's just spewing **** at you. Who was #1 on his "splash play metric", Jaylon Smith?