But everyone seems to agree that Soler's ceiling isn't anywhere close to a 10. If it's more like a 5-6, as scouting reports seem to suggest, then he really doesn't have that much room to improve. Again, my issue is the assumption that it's easier for Soler to improve simply because he's currently much worse.
If Inciarte was a .750 OPS guy and Soler had already put up a .900 OPS, I wouldn't say that it's much easier for Inciarte to improve his offense further because it's a 5/10 while Soler's is a 9/10. Because both would be similarly close to their ceiling already. I just don't think Soler has the tools to be good defensively. If his issue is that he's dumb or lazy, that's not likely to be corrected easily. If it's ability, it almost certainly won't be corrected.
And the problem is that Inciarte's offense could improve, and that would be great...but it doesn't need to improve. Soler's defense and offense both need to improve, and by a pretty good bit, to even get to Inciarte's current level. So if Soler was already as valuable as Inciarte, then this would be a better discussion. But as it stands, Soler has to improve quite a bit to reach Inciarte, and even then, Inciarte could improve further.
I, too, might prefer McKinney or Happ in a deal, especially if we can get them for cheaper.