@RuthMalan My main issue is that the "challenges" are primordial in working out the future state yet are basically implicit in the TOGAF process whereas they should be the initial focus of any workshop.
Another is that in a greenfield solution architecture process (ignoring strategy) you tend to follow a strict business to application/functional to technical to implementation process, wth each going (basically) from motivational principles (why) to EA "how/what". This process isn't quite the same in a gap analysis because each challenge is at a certain level based on the baseline situation, but *some* challenges could cascade through in a similar fashion. It makes the workshop process a bit less linear in my mind.