So, this is what we know about the Eagles offensive line for the coming 2009 season: Every available member of the Andrews family has been signed and very few incumbent tackles are on board.
The Eagles are in a position to wait and see about right tackle John Runyan, a free agent recovering from knee surgery, but they lost the services of left tackle Tra Thomas, who signed with the Jacksonville Jaguars.
What does it mean? Well, if Stacy Andrews is indeed going to be the right tackle, it means that either Shawn Andrews will be shifted to left tackle from right guard (unlikely), or that Todd Herremans will move from left guard to left tackle (not quite as unlikely, but not that great), Winston Justice will make a huge leap in ability (yeah, I've got a picture of that happening), or the Eagles will have to find a new left tackle.
I think moving Shawn Andrews to left tackle is unlikely because he is coming off a serious injury and because his mental attitude is unknown. Just getting him back as a serviceable guard would be a positive for the Eagles. Expecting him to come back and change positions seems like more than they would ask.