The Tunnel

I understand the football sense that the moves make to get the best players on the field and how certain players tools fit at specific positions, but does it sound like Foster might be trying to move towards a bit more a conventional secondary configuration?

Foster's system has never been the typical 4 deep setup (2 cbs and 2 safeties). He cheats guys up to the line to provide pressure or force blitz mismatches. Could these moves signal more of a traditional two deep safeties as he has been trending towards the last few years (especially the way he uses the nickel package)?

Thoughts?