I'd rather see Minor Leaguers who can grow to be Major Leaguers, than see players who used to be "major Leaguers" but aren't anymore.
Like Ayala. That dude is so terrible it's really unbelievable. He blows his sinker by Kapler twice and then hangs one right over the plate. Dude has given up 5 earned runs in his last 1.1 IP (3 appearances).