Maybe you don't remember, but I was a big fan of Parnell replacing Free when he was here.
Obviously, the 1st round picks were a joke.
Jacksonville's LT situation has been a problem. They moved Luke Joeckel (#2 overall in 2013) from LT to LG last season before he ended up on IR. He is gone now. They signed Kevin Beachum to play LT on a 1 year contract last season. He had some struggles.
They drafted Robinson, but many don't see him as a LT. They would probably better better off moving Parnell to LT and playing Robinson at RT.
I really don't know if anybody can really have great success on their OL. Beachum struggled there but still got a 3-year, 24M contract from the Jets.
For the Cowboys, Green was really good in 2 starts at LT last season but obviously has not been able to stay healthy. I'm interested to see if La'el plays RT in preseason games. That will be interesting to see.