You don't know what random fluctuation means, do you? Why are you going to base LaHair's future off of 10-15 starts, or under 100 PAs? At 100 PAs, which he won't reach, he still has a random variation of about .5 in his OBP and wOBA. Judging him that prematurely is just stupid. And if he HITS(not gets on base or has an wOBA of...) below 200 you aren't going to give him a ST invite? But let me guess, Colvin gets one, doesn't he?
First off, there's more to getting a look at him during those starts than just the stats. I know, you statheads don't comprehend such. However, you can see the guy's approach at the plate, the mechanics of his swing, how he's making contact, whether or not his swing needs a ton of work... etc. These things, you can't find in any stat... period, but are relied upon by scouts, GMs, coaches, managers, etc as much (and in most cases moreso) as any stat you can dish up or create.
If a guy is hitting .200 and is nailing line drives right at guys... this is different than a guy hitting .150 and is lucky to make contact in more than 70% of his AB. If LaHair is failing to put up numbers, but looking good at the plate... then extend his shot into ST. If he's putting up those numbers in the same situation... I think you begin to rethink the approach on how to rebuild this team over the winter. If he is showing signs of a bad swing, mechanics, or approach... then he goes back to Iowa. He's too old to recreate a swing, or to change his approach without having any substantial experience at this level.
And before you go onto your next ignorant tirade about assuming I don't know what I'm talking about (I actually played and coached this game for many years at levels beyond little league/sandlots with), I'm not saying that stats don't matter. I'm saying that they're not the only things that do matter.
Secondly, I'm not sure Colvin deserves to go to ST with a shot at making the team either. At this point, I'm more inclined to say he's not, but he'll be there nonetheless. I haven't really looked up his stats since coming back up, but he has looked better at the plate than he did before his demotion... but no where near where he was last year.