I'm more interested in the structure of the BfSB and wonder if the BfSB would be more versitle if it was an Infantry Brigade Combat Team or Airborne Infantry Brigade Combat Team with enhanced military intelligence capabilities and a Ranger battalion instead of a RSTA squadron?

This design may not fit with the true purpose of the BfSB, but a Ranger battalion and two maneuver battalions would seem to me to add flexability and "bite" compared to the current design.

Also, with some talking about creating stability & security brigades would it not make sense to team SBCTs with the SFGs? Maybe this is already being done.

Hell, combine all three into Special Forces Brigades - take the Stryker BCT with enhanced MI, add a Ranger battalion and a SFG.