In response to moonslav59's comment:
The guys you mentioned are all streaky hitters. A hitting coach has nothing to really do with that. Most MLB hitters are streaky. Guys like Ellsbury, Papi, and Pedey are your consistant hitters.
Ellsbury is streaky. Almost his entire career has been a rollercoaster, some caused by injury and recovery from injury, but none the less, he has not been consistent.
2007: short sample size red hot through the playoffs.
2008: (est numbers)
2009 est OPS:.
2010: Injured .485 OPS in 84 PAs
2011: Pretty consistent .803 to 1.130 monthy OPS range, but a pretty wide disparity 1st/2nd half.
1st half: .867
2nd half: 1.000
2012-2013: Injured for much of 2012, but...
2012 (323 PAs) .682 OPS
'13 Apr-May (255 PAs) .710 OPS
That's about 575 PAs straight with an OPS below .700. Pretty streaky, right?
Then monthly OPS of: .894, .844, .758, and .861
300 hitters are usually not considered streaky. I dont care about the injuries. That has nothing to do with my statement. Ells career BA is .297. Sorry, but I cant count injured years because, well, he was hurt.
300 hitters dont go on long cold streaks and they are not as severe as someone like Naps, Drew or Salty. Thats why those 3 have lower BA.
Theres always a degree of streakiness or else there would be a bunch of 500 hitters. I dont consider a guy who hits about 300 when healthy, streaky. His 4 years of 600+ PA's .280, .301, .321, .298. Nope, i stand by my statement that hes not streaky.