Bolts said this week he sees JW as a swing man, which to me means we need another key defender. Outside of JW there's only LP and JGM if we are talking of young defenders. I am not sold in Foster.
On that swingman comment, I didn't like it. Swingmen are highly overrated in my book.
They end up being handy at either end, but not dominant at either. I can't think of one off the top of my head who was truly dominant at one or both ends. SOS would be the exception to the rule I'd suggest. 200 goals as full back of the century. Although that is a truly special player right there and wouldn't be considered a swingman by many.
Ideally I'd like to see up use him as Harry Taylor was a few years ago. I remember he was back 97% of the time. The 3% was when he'd just drift forward out the back on his own, or would be thrown forward for 10 minutes to see if he could sneak a goal or two, then go back.
Either way, forward or back, we need to get him set somewhere. Don't want to see Weitering end up being an inbetweener.