I think if we're discussing trading ALR, we're effectively talking about the offseason.
And I don't think we'd have to get a first baseman, necessarily, but we'd have to fill in the hole at 1st, 2nd, or 3rd, depending on what was available. And, who knows, maybe Espinosa figures it out.
If we move ALR, we may as well move Span. I didn't like the trade before the season, and I like it a lot less. It's not so much the player, as the idea that we traded a big arm for a guy we simply could have bought (Michael Bourn). I honestly feel as though Bourn would have signed here on a 3 year deal, which is essentially what we have with Span. He would have cost more, but, frankly, he was a better player. Better defender, better hitter, and better baserunner.
Now, if anyone knows of a player we can trade for RIGHT NOW that will help the offense, I'm all ears. But I can't think of anyone.