A few minutes ago Tim Hasselbeck was a guest on the Daily News Live on SNY. Hasselbeck made the case that not having Shockey on the field has helped Eli Manning immeasurably. He said that it has allowed Manning to make the proper read without getting chewed out in the huddle by a pouty Shockey. Shockey, Hasselbeck said, becomes a major distraction if he doesn't get the ball early and often. When asked whether the Giants should bring Shockey back, Hasselbeck hinted that perhaps they should not.
Now of course this is just one man's opinion, but it is a rather informed one. Hasselbeck was Eli's friend and backup until this year. As such he has insight on the dynamics of the Giants.