I'm reserving judgement until I've seen more of him, but based on appearances (or lack of) to date, he isn't the uncompromising, no nonsense stopper we really need in that 'centre of a back three' position. I'm not especially keen on the three at the back approach anyway, but if you're going to play it, surely the idea is that the supporting centre-halves on the left and right are the ball players with licence to get forward - as Brindley and Cameron can - while your middle centre-half is your all-out defensive stopper, a la Mark Ellis. As with Lacey before him, Baldwin looks a decent ball-player, but not exactly a defensive rock. I'd prefer a Colin Foster / Anders Jacobsen / Craig Short type in the middle of the back three... if that reference isn't too dated!
Bajrami actually looks to be the best defender.