I would expect that to be the case.In the Dan Patrick interview with AJ Dan asked AJ about this. AJ said he had full authority to change in and out of plays and he implied he did it all game.
On a side note, I watch little NFL, but happened to catch some commentary by Ray Lewis about Manning. He said it took him awhile, but he finally realized that all of that pointing and yelling Peyton Manning does pre-snap, is often just done to see what the defense will do so that he will then know how to adjust the O.