I don’t buy that there are when you count Meidroth, who I want up early in the year also - a guy with a .400 OBP at AAA last year won’t learn much by repeating the level.
The only way I see it being no problem is if the veteran, Rojas, gets glued to the bench. The next time the White Sox sign a field general veteran and bench him for rookies will probably be the first. I’m guessing he gets his 500 PAs, which maybe leaves the others with 300-400? And that’s before Baty or someone like that and maybe Ramos, if healthy.
In terms of Montgomery, I outlined this in another thread - I hate calling Montgomery up even if he has a good spring. His problems last year were possibly a back injury, hitting fastballs, and maybe another personal issue. In spring training he won’t be playing full games everyday, and he will be against pitchers who are ramping up and who aren’t yet using their best fastballs. This is a setup where he could absolutely look good in the spring and have it be a mirage.
Send him to AAA, let him show me that last year was a fluke while playing everyday, and he can come up mid May. If, for example, he starts playing everyday and his back flares up again, clearly this will be a longer term problem that needs figured out, and he will be accumulating service time if he comes up and then winds up on the IL. Gimme 6 solid weeks at AAA and no complaints if he’s called up, but coming off last season he needs to prove to me that last season is a mirage.