They never had more than 2 first stringers on the front 4 or 5
Often times they also have 2 second stringers on the second level (LBs).
Here's what they started out with:
LDE 93 Guy Lawrence (2nd), LDT 99 Vince Valentine (2nd), RDT 90 Malcom Brown (1st), 94 RDE Kony Ealy (1st)
LOLB 48 Harvey Langi (3rd) ROLB 53 Kyle Van Noy (2nd)
52 MLB Elandon Roberts (2nd)
In fact, that's how they played the whole first series.
On the second series, they brought in another 3rd stringer on the line (#64), but replace a second stringer at LB with Harris #45:
48-3, 97-1, 99-2, 64-3
53-2, 45-1
That was how they played for the most part on the second series.
On one play, they put in a 4th stringer #70 Adam Butler
On short yardage, they added another second-string lineman #93
I had charted the whole two series, play by play.