Manning experienced a similar dynamic in his fourth season with the Giants. Like Sanchez, he showed plenty of promise early in his career, yet hit a point in the middle of his fourth year where doubts crept in about how good he could actually become. There was one particularly difficult period in the aftermath of a 41-17 home loss to the Vikings, when Manning threw four interceptions and general manager Jerry Reese used the word "skittish" to describe his behavior in the pocket.
The article also doesn't mention Eli's 8-22 59 yard clunker against a 0-7 Dolphins team and his 18-52 184 yard outing against an average Washington team.
Young QBs go through these things. Give the kid a little bit of a break and let him develop. After all we have already scored 12 offensive TDs in 7 games, only 4 less than we did the entire 2010 season.