Looking at his splits, Julien seemed to be get walk "happy" later in the season:
4/1 - 7/31 - .298/.386/.536 (.922 OPS) 10 HR, 18 RBI, 25/65 BB/K ratio. 11.8 BB%, 30.8 K%, .407 BAbip
8/1 - 10/1 - .223/.376/.369 (.745 OPS) 6 HR, 19 RBI, 39/63 BB/K ratio. 19.8 BB%, 32.0 k%, .326 BAbip
Whether this was due to batting lead-off more often, league adjustment, or change in approach by him, his average and power were way down after August 1 while his BB% was way up. His K% remained roughly equal. His BAbip regressed to closer to league average (.297), but good things happened when he put the ball in play.
Here are his splits with 2 strikes - .147/.299/.199 (.498 OPS) League avg - .172/.249/.273 (.522 OPS)
Here are fullcount splits - .119/.485./.220 (.708 OPS) League avg - .191/.454/.325 (.779 OPS)
He has shown that he has a good eye at the plate, league average BB% is 8.6%, and that he can hit the ball hard (44.9 hard hit %), but he needs to improve his 2 strike hitting, and as previously stated, his in the zone contact rate.