Stability hasn't been one of the Eagles' virtues this season. They have been forced to make changes — in some cases, major ones — at quarterback, receiver, linebacker, defensive line, linebacker, safety and on the offensive line. And it's at the latter position that the group has faced the most fire. Sure, the linebackers have received their share of criticism, but the O-line's primary job is to block for their $100 million investment, Michael Vick, and it has come up short. After a series of changes, the latest one had been moving King Dunlap into OLT Jason Peters' starting spot in Week Five. Now, it appears that Dunlap is likely to miss Sunday's game against the Redskins, so Todd Herremans would take that spot. Herremans already has switched this season from left guard to right tackle, so one of the Eagles' most consistent offensive linemen is on the move again. With rookies already starting at center (Jason Kelce) and right guard (Danny Watkins), the Eagles are almost down to bare reserves.