I,d suggest we were in discussions with both, thinking a success rate of 50% would be good.I imagine, knowing how diligent Blair is, that we were well aware of both, and had conversations with the management of both, but were prioritising one over the other - thinking the cost for both would be too high.
I agree though, the decision to get them both looked very late in the peace.
Can only speculate it became a reality when negotiations started and GWS were pushing too much for one, so we tried a package deal. We'll never know unless Blair publishes a tell all.
Don't put all your eggs in one basket!
When both turned around and responded yes we then said 'now whadda we do'