The article kcvl just posted says that Lindsey was Clinton's liaison to the National Archives. Now what would be the point of calling Lindsey to tell him Berger had taken some stuff? Why not call Berger? Or (silly me) the FBI?
Why did the Archives call Lindsey? Apparently, the Archives wants us it think was b/c they had previous contact with Lindsey, but that does not preclude your theory that there was collusion, and the call may even be evidence of it.
Berger was not in government at that time, so why was he allowed access to classified documents???
Call Lindsey to get the stuff back before anyone else knew. Not Berger because they thought he was a flake?