Personally what I would like to see is fully legit, full time Fitness Coach/Physio. Do we have one of those already?
If we are going to have older players like Ifill and Stein, [godforbid] Lochhead (and Dura, Siggy and Leo aren't getting any younger) we need to have them fit as possible and be doing whatever we can to keep them injury free.
If we are going to play some sort of possession based football the players will need to be especially fit to implement the tactics and as such I think we need a dedicated, in house sport scientist to ensure the players are in peak condition through the off-season and all season long.