Barrett's Balance at the Plate?

[jyoung55]

I've been noticing for awhile that Barrett has been releasing his back foot early and stepping over across the plate with that foot a lot lately. Is this something that he has always done and I am just now noticing? Or has he recently developed a balance problem at the plate that could be leading to more foul balls or poor contact and thus his lower average? I'm not a hitting coach by any stretch but this little habit he has maybe indicative of a larger problem. Thoughts?