At first glance, Carlos Mendoza’s minor league totals are entirely unspectacular. Between 1997 and 2010, he played for a dozen different ballclubs and at every position except for catcher and center field across every level of the minors, as well as a stint in independent baseball and the Winter League of his native Venezuela. As an undrafted Giants signee with a career .232 batting average and just 36 career Triple-A at-bats, it’s hard to imagine that they or the Yankees — the only two major league franchises he played affiliated ball for — ever really thought that Mendoza had a chance at the ultimate promotion.