Again this goes back to Baez committing 44 errors last year vs 20 that Castro made. I'm not quite getting that one.
Again, I said if Baez can play the position. If they didn't believe he could he would be playing 2B full time in rather than just getting a look. I'm not saying the errors are meaningless just that they seem to believe they are correctable. Castro was far from ready as a rookie and he eventually got better which i referenced in his error stats. I believe Baez will work out similarly. However, if he goes out and commits 40 errors again he probably falls into the "can't play the position" category I mentioned and ends up at 2B. On the other hand if he goes out and commits 20-25 errors we're having an entirely different conversation. And I believe that's what will happen and I think that he will vastly improve before he hits the majors so I don't think it will be a case of hoping things change at the major level.
And to show what I mean look at this. They don't have UZR stats for minors but if you look at typical fielding stats this was Castro's first two years in the majors
2010 - 544 chances 27 errors .950 fielding percent
2011 - 742 chances 29 errors .961 fielding percent
Now if we look at Baez in the minors you see this
2012 - 340 chances 17 errors .950 fielding percent
2013 Daytona - 396 chances 31 errors .922 fielding percent
2013 Tenn - 248 chances 13 errors .948 fielding percent
I'm not going to speculate why he was so terrible at Daytona last year but he was better at Tenn. and 2012/Tenn's fielding percentage is in line with Castro's first season in the majors. Now don't get me wrong, .950 fielding percent isn't stellar and you'd like to see him improve from there. All I'm saying is Castro is a career .961 fielding percent guy and other than Daytona Baez looks like he could be at least a .950 guy. So, I think he can improve similar to what Castro did.