I hate to be a Kill(gore)joy but even though Desmond has reacted well to moving the the leadoff spot, it's only been two weeks. I can pull out a 11 game segment from early June where he hit .319. Granted that wasn't as good (he barely walked and had 0 XBH) but still you have to see the point. YOU HAVE TO SEE IT.
More importantly though - it is true that since the All-Star break he's been hitting better. Has he been hitting well? That's debatable. Has he been hitting well enough for a SS? Yes definitely.
Of course here's the thing.
Pre All-Star game : 85 games
Post All-Star game : 40 games
Don't let recency fool you. Those 85 games count.
Also - both by the eyeball test and the fancy stat test, Ian's fielding has gone downhill as the season's gone on.
You still bring up Lombardozzi. You still spot start him. You still see if Desmond can keep this up through the last 30 games of the season. If he can... well you've got a debate on your hands on what to do in 2012. If he can't then... well you don't.