That was my post, I'm a PGY-1 from a mid-tier MD who interviewed at top IM programs. If you don't go to a top med school, then the most important factor for matching a top IM residency will be AOA. There are programs that will take students with strong boards without AOA from low/mid-tier schools such as a few of these mentioned above, but AOA will open the most options and get you the best "yield". Typically, AOA and boards are correlated, but the people I knew with AOA/low boards performed better than those with high boards/no AOA. Extensive research is not as big of a factor for IM as for fellowship, but if you have a lot of research, then you can get a top academic fellowship even from a mid tier IM program (so if your goal is eventually a top research cards/gi/onc/pulm program, starting research now will be very helpful for the future). And it can be your hook for an occasional reach interview, as with the OP.