Who are you talking about? The pitchers? Because most of those were emergency help kind of stuff. Shoppach? He didn't get regular time, and he's kind of streaky as it is anyway.
Pedroia is a top prospect, and he's very good, and by the beginning of next year could certainly be ready to play in the bigs. I frankly don't see why he wouldn't be ready. College players generally progress through the farm systems much faster than high school players.
I certainly hope you aren't implying that since some minor leaguers (in spot playing time) have struggled up in the majors, ALL minor leaguers in the sox system will never be ready. The sox system is adequate, and will soon be very good. Don't be afraid of calling up rookies, especially replacing the king of stikeouts. I'm willing to stick with Bellhorn this year, but there is ZERO reason Pedroia shouldn't play next year if he continues to progress well.
Matt