I agree that all those things you mention may have had an effect on slowing down Upton's development. My only point is ... if it was my team ... I wouldn't be willing to wait for eight years at the major league level for him to become the best he can be. IF ... I wanted to keep him "in the fold" ... (which, in my case, I probably wouldn't have) ... back in his earlier years ... I would have put him down in Durham for the addtional necessary "seasoning". The REAL problem is that he had his "career year" right in the beginning ... in 2007 ... possibly a fluke ... but generating F-A-R too many high expectations ... and making it very tough to send him back down for a couple of seasons.
Beyond that, I just do not view him as highly as a baseball player as some others do ... and ... truthfully ... and certainly because of his salary ... I would have traded him last July to the Nationals (if that rumor was true) ... and I'd be perfectly happy with Jennings or Fuld playing center. In fact ... Fuld was in center yesterday ... and, you know, maybe it's me ... but he just seems to be positioned better ... seems to be quicker ... seems to run better routes to the ball ... seems to consistently throw better (with a w-a-y quicker release) ... seems to have better "baseball awareness" ... plus ... he seems to be w-a-y more "gung ho".
But ... everybody evaluates talent (of ANY kind) differently ... and ... of course ... different managers or coaches in baseball have different ideas about team philosophy, how different positions are best played, what makes one guy more valuable than another ... etc. In my case ... I'm not now nor have I ever been as high on Upton as some others have been ... and ... as his salary has advanced ever higher ... I would have become more-and-more inclined to trade him.
From what little I've seen ... I like Keppinger's hitting ... Brignac looks like the 2010 Brignac at the plate and he's doing an all-around bang-up job ... Vogt is definitely hitting everybody he's faced ... Fuld seems even better in the field, on the bases, and in the batter's box ... Davis looks like he'll be odd-man-out in the rotation ... Pena's strikeouts continue ... and I did see Scott in one at-bat ... and he actually looked very good and hit an opposite field screamer down the foul line ... so ... if the shoulder and all his other parts are working properly ... maybe he'll be able to consistently hang in there at DH. (?)
Thus far ... and the regulars haven't played much:
Rodriguez - 10 ABs - .400
Brignac - 18 ABs - .389
Keppinger - 18 ABs - .389
Jennings - 16 ABs - .375
Vogt - 28 ABs - .357 (MY pleasant surprise of the Spring thus far!)
Fuld - 10ABs - .300
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Joyce - 23 ABs - .261
Lobaton - 16 ABs - .250
Zobrist - 16 ABs - .250
Scott - 8 ABs - .125 (3 SOs)
Upton - 17 ABs - .118 (5 SOs)
Longoria - 3 ABs - .000 (2 SOs)
Pena - 12 ABs - .000 (4 SOs)
Longoria still hasn't been playing; Chirinos is out with a concussion; Davis' struggles continue ... and I think there are some pretty good looking and unheralded young players out there!
Overall ... Maddon seems to be keeping most of the regulars more-or-less under wraps ... while giving a lot of newbies a chance to play. (For me ... I'd probably want to see all my light-hitting regulars getting as many live-pitching at bats as possible ... but ... maybe he'll being doing that over the remaining 15 or so spring games.)