Due to seeing The A-Team, again last night, I have to conclude that I might have been a little harsh in my criticism of Faceman's writers. There was, in fact, an instance (during the preparation for the Baghdad Job) when he used trickery and impersonation to gather equipment for the team. There were also indications, such as our brief glimpse of his time in prison, that he does this regularly off-screen. I do, however, stand by my assertion that there should have been more focus on this, and less on him learning to mimic Hannibal's planning style.
Also, I spotted what may be an undiscussed Easter Egg - during the brief shot of Hannibal's toe-tag, the other name (besides, "John H. Smith") reads, "Dr. Schultz". Is this another reference to original Murdock actor Dwight Schultz? If so, it's a bit odd, since Murdock has nothing to do with that particular scene.