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of this phenomenon, and his name is/was Justin Leone.
I won't go as in-depth as you did, but the guy has a career .254/.360/.469 minor league line and in his first taste of big-league action put up .216/.298/.441 in 102 AB's (in a call-up to replace Cirillo at 3B, following a .269/.344/.597 line at Tacoma that season).
Good find on under-appreciated players. Leone should have been a benchie for this organization the last few years, and a spot starter on the left side of the infield. Instead he puts up a couple .940 OPS high minors seasons, and gets relegated to AAAA status because of his profile. Not hard to understand why the guy has basically fallen apart the last year or two.