Berman-Wulf emails: What to watch & Eagles-Seahawks predictions; plans at CB, LB, RG; too many red flags to ignore?

Zach Berman and Bo Wulf trade emails each week previewing the Eagles’ upcoming game. Here is the transcript:
Wulf: Zach, 
I hope this correspondence finds you well and, above all, well-rested. It's Sunday morning here, before we know how the Niners and Cowboys will fare ahead of the Eagles' Monday nighter in Seattle. But even though we discussed this matchup for the better part of five shows during the week, much has changed since you, Deniz and me last spoke on the Friday show. 
Three key starters have been declared out for the Eagles. Darius Slay underwent "minor" knee surgery and is reportedly expected to return before the end of the regular season but will not be on the field w...