The Philadelphia Eagles opened today's contest with an eye on roster shifts rather than on-field highlights . Retired veteran forward Jamie Cripps announced he will return to his roots after ending his career with the West Coast Eagles. On the offensive line, depth issues have pushed several second-year players into larger roles, a topic coaches stressed during pre-game comments . Training camp observers are monitoring the tight end and fullback groups for early contributions. New line coach Chris Kuper is tweaking Jeff Stoutland’s system, aiming the changes will shore up protection. The Eagles will assess progress in the coming weeks.