With Bradley it's pretty simple - he's great when he's ahead in the count and helpless when he gets behind.
When Bradley puts the ball in play when the count is 1-0, 2-1, or 3-1 he is hitting .406. (He never put the ball in play on a 2-0 count, which is astonishing).
When he puts the ball in play, or swings and misses, when the count is 0-1, 0-2, or 1-2 he's hitting .156. When he hits or misses a 2-2 pitch he's hitting .150.
Bradley is a horrible two-strike hitter. He's hitting .110 (15-for-136) with two strikes.
The most amazing stat is that he's 0-for-24 on a 3-2 count with 19 K's. He does have 15 walks, however. So in the 39 times he has had a 3-2 count this season he does not have a hit and has put the ball in play 5 times.
He also struggles on the road. His home/road OPS is .858/.629. His mom should pack him lunches for road trips.
One thing you can say for Bradley, he's very motivated, having lost a lot of weight and gotten in much better shape. He's trying to take outside pitches to left-center and having some success. I would like to see him get a full season of playing every day and see what he can do. He just turned 25 in May. But if he is to make it in the bigs the coaches need to work with him on his two-strike hitting. I think he gets nervous about being called out and chases pitches out of the zone that he would take early in the count.
I've always wondered whether hitters' production would improve if they forced themselves to pretend the count was 0-0 on every pitch, regardless of the actual count. How many times have I seen hitters take close pitches for balls early in the count and then chase the same pitch with two strikes, getting themselves out? You hear announcers talk about "expanding the strike zone" with two strikes. It's true - batters will chase pitches with two strikes that they won't swing at with zero or one strike. Amed is a good example.
My belief is that hitters make a lot more outs chasing bad pitches with two strikes than they would if they took those pitches and got called out a few more times. I think Bradley has no chance of being a successful big league player as long as he hits .110 with two strikes on him.