you are being mislead.
statistically and in performance he's been dramatically inconsistent, not mediocre.
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me·di·o·cre
adj \?me-de-'o-k?r\
Definition of MEDIOCRE
: of moderate or low quality, value, ability, or performance : ordinary, so-so
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that sounds like aj to you? ordinary? either he's nearly unhittable, inning to inning, or he's imploding.
it's obvious to anyone watching the yankee games this year, which many of our new england friends cant due to media limitations, that his head was the problem.
in the past he fell apart in the past when things didnt go his way. he was the antiandy pettite, who didnt have great stuff like aj but was very comfortable fighting thru situations with men on base.
his changeup has helped him grind it out when he doenst have the best stuff this year. even if he doesnt throw it they cant wait on his fastball so easily.