The problem with most stupid action blockbusters is that they think you're stupid and take the "stupid" moniker to mean that it is you who is responsible to stoop to their levels. The A-Team is a completely other kind of stupid summer action film - it respects you, and makes an effort to engage and lead you through certain visual cues to attempt and hide the impossibilities that such a film carries with it.
I was never especially a fan of the TV show the film is based on, but thankfully, Joe Carnahan and his writers seem to think that there is a hidden back-story of the coming toget....