Don't expect his recent 10 steals. Won't happen. His caught-stealing rate is way too high for a team like the A's to send him often.
That having been said, he has been a huge second-half player the past two years, batting in the .320s after the break.
I say he is still adjusting to the new league. If you can find a suitable waiver replacement, you could certainly bench him now, but I advise against dropping him outright.