This always got to me. At the end of the day despite the absurd fact that 9 Autobots beat God know how many Decpeticons, how did you feel when Sam asked Optimus what his strategy would be? It was luck that Optimus found it necessary to fool Sam too unless he knew of the Decepticon on Sam's wrist. Even still Sam asked if the Autobots leaving was a plan. Ultimately Sam intended to give away the Autobots plans to the Decepticons even though it was to save Carly.