(insert name of minor leaguer who is hitting well at AA or AAA)"couldn't possibly be worse than the incumbents."
How many times over the years has this been said, and then discovered to be very untrue? I bet similar statements have been uttered about Krauss, Villar, Grossman, Chapman, Zeid, and probably a few other disappointments on the current 40-man roster alone, not to mention years past.
Austin Wates has played all of 28 games in AAA. Yes, he's done well, with a .825 OPS. Alex Presley played 285 games in AAA, and had a .837 OPS. LJ Hoes played 181 games in AAA with a .791 OPS, including a .391 OBP. He only has about 200 ABs in the majors and has done OK. Not to mention he's a year younger than Wates. Calm down with this "bring up the entire AAA team" mentality.