The strength the Oline the last few years was from Center to the left side. With the sudden departures of Wood, and Incognito the Bills are now stuck filling those positions with backups. The Bills gave away alot of draft capital to get Edmunds and Allen which could have been used on the line. It's always pick your poison with this stuff.
The OLine will shake out and is probably on the list next year for upgrades with the 100 million in cap space we will have.