This is true, but he is still impressively bad over a large sample size. If you lower the qualifying player floor to 500 PAs, which gives you 359 players over that past 3 seasons, he then ranks 335 in OBP, 333 in SLG, 346 in wOBA, 320 in fWAR, and 347 in wRC+. He's the most "passes the eye test" player ever. He makes flashy plays that make him seem like a better defender than he is and he's had a handful of big hits that give you hope that he can become a decent hitter as well. Despite all that, he's obviously very talented and I actually like the guy, but it seems like we have the "he's young and this could be the year he puts it together" conversation every single year. I don't think he's worth anything in a trade, so it's probably best to still keep him on the roster for now, but it's very hard to argue that SS isn't a spot that we could improve drastically considering the production we've gotten from that spot the past several years. Maybe Arcia finally turns the corner and he's does it himself, but it seems more likely that a newcomer may have a better shot to make a big positive difference (and there's not much room for anyone to be actually worse).