For all the fast-lane, super sexy, sought-after roles in say consulting, finance (buyside especially), the A+ and A schools tend to have earlier and perhaps better bites at the apple. While these positions are disproportionately popular among Top Tier MBAs, they are still a narrow slice of the broader game ('the business world') where an impressive MBA is dangerous. In this broader context, A- makes you about as dangerous as you need to be. While you might need to prove yourself just a tad more, alums from this class end up in by and large the same arenas as those from higher-ranked schools.