I think they need to keep Jackson on the 53. The kid has played, what, every snap of preseason at LT? And he's played well overall. Going into preseason it would be ideal to have him and Meredith on the PS but I think another team would add Jackson as their 8th or 9th OL if released.
I would have the OL as:
Whitworth
Edwards
Allen
Corbett
Havenstein
Noteboom
Anchrum
Jackson
either Evans or a waiver wire pickup
PS- Meredith (de facto backup center), Brewer (?)