I would do an in depth evaluation of the client from top to bottom. ROM screening, injury history, lingering effects history, muscle imbalances, etc. That along with getting to the current goals/wish list of the client would guide my initial programming. And adjustments would be made from there like any other client program.
I would bet that stability and habitual postures/poor posture have not been addressed with this client in the past. That would definitely be on my initial programming.