Do not care. Baker is not an everyday player, and LaHair either is going to be an everyday player or is a player that could get traded. He has not faced enough LHP for me to say never bat him against LHPs because Baker gets all those at bats. I say give him a chance, maybe some confidence.
Someone already posted it, but look at his MiLB stats too. He wasn't even average against lefties.
He's 29 years old for cripes sake. If he couldn't gain confidence against lefties in the minors, how will he gain confidence against them in the majors?
Baker is not an everyday player........which is why he doesn't play every day. But he is a guy that, unlike LaHair, has a history of hitting LHP well.