While the inside zone read was Chip Kelly's go-to-work play in 2013 (and we'll cover it extensively later in the countdown), the counter play he used a lot in Oregon was the outside zone read. I could spend some time describing this play, but it is covered exceptionally well here by Fishduck.com
The outside zone read is essentially a zone stretch play but Kelly often runs it with a read-option component. Here's what it looks like. I want you to focus first on the RDE who is left unblocked and frozen by Vick. By leaving this player unblocked they gain an extra blocker on the play side which enables initial double teams on both the LDT and the LDE.
Jason Peters is one of the guys to focus on as he is lined up as the tight end on the strong side in an unbalanced line. First let's take a shot at the mesh point. You can see Vick reading the LDE #91 and completely freezing him as the unblocked defender. You can also see the 2 initial double teams off the line with Peters and Johnson taking out the LDE (he has no chance) and Herremans and Kelce on the LDT. You can also see Herremans peeling off his block to get to #56 at the second level:
The MLB #52 reads the play pretty well and this is a tough block for Celek to make when he makes the right read. However, following the initial double team, watch Jason Peters peel off that block and take out the MLB sealing the edge and opening up the corner for McCoy to turn and run:
You can see the initial kick-step left from the OL that is customary of the outside zone read. And of course the read-option component as Vick effectively blocks Justin Tuck. As you can see, by gaining that extra blocker on the play side, the Eagles have accounted for every Giants defender in the box:
Johnson delivers a nice cut block. However the key is finding McCoy a crease. On the above play, Peters sealed the edge and McCoy had room on the outside. This time Peters takes Kiwanuka for a ride on skates:
and drives him to the sidelines for a huge hole for McCoy: