but I think Kendall is just more comfortable in the National League. He played there for awhile with Pittsburgh so he must have grown accustomed to it. There are certain players that sign with the NL or AL teams because of this comforts they have in certain leagues. (EX: Greg Maddux, Tom Glavine, Scott Rolen, etc.)

the NL is an inferior league, just look at the pitchers he faces on a day to day basis, and the parks he plays in, Chicago, Cincy, Houston, Philadelphia, all band boxes with generally awful pitching.

once he got out of it, he feels better and playing better.
He definitely sucked with the A's for the most part, but as of late, I bet he was just happy to move on and get out of Oakland and away from the clubhouse drama

the funny thing is that his pitcher coaching, to the degree that means anything, has been horrible.  that staff is pitching like total garbage in the past couple of weeks, zambrano included.

my theory is that he consciously decided not to even bother learning the new pitching crew, and instead has put his focus on the pat and good backstop D.   same as with the a's - two roles well, one role horribly.  in any case, the gun is also a tick or two slower than it was - that's fallen off from his excellent 50% or so throwout average in the first 100 games.