Arteta has until November/December to turn this around or he is gone. He is not in a position to say meh I just use xhaka instead of strengthening that position. And xhaka has not been unprofessional because he was told finish the season and you can go. The man had big falling out with the fans and has publicly made it clear he wants to leave. He will leave even it’s 10 million I’m convinced he will leaveRoma isn't the only club out there. If Xhaka himself isn't dead set on Roma, his agent could maybe garner interest from elsewhere. But with current the status quo, we don't need to cave yet. He's got 2 years on his contract and his agent isn't Raiola like in Mkhitaryan's case, Raul isn't at the helm either to sanction something like that.
Xhaka's a tool but he hasn't been unprofessional in anyway. Like someone else mentioned, Roma did this all last summer when they chased Smalling.
I'm actually more concerned at the lack of exits at this point. It's unreal the amount of deadwood we've collected over last 3-4 years. The lack of activity overall in the transfer market is weird, none of the big hitters have actually done any business except ManU and PSG. We're actually one of the busier clubs this window weirdly enough.