why has it lacked ?
look when Aaron Smith and Casey Hampton last played on the LOS in unison ....
now we have arrived at full circle without 2 men capable of handling a double team on the LOS in Lebeaus 3 4 you are doomed before you start .....
is that a problem with the inventor of the specific scheme or the man responsible for making sure he has the ingredients to make it work ?
I say the latter .............