I never thought of indecisiveness as a character trait of INTP. Interesting story, though: at the end of undergrad I couldn't decide if I preferred business or medicine. So I ended up getting a dual degree - either due to indecisiveness or opportunity, not sure which. I took a personality test a couple times during the early years of training (once in each school) both of which said I was an INTP. Near the end of training I retook the test and my personality and "shifted" slightly to INTJ. I've taken it a couple times since and always end up INTJ rather than INTP. In any case, the "decision making process" was much easier for me when choosing which specialty to pursue vs my initial career path. Whether that is because I tend to be a J instead of a P now, or because I do not know.
Anyway, things my personality dislikes about anesthesiology residency: attendings nitpicking about things that don't matter or can be done a billion ways correctly, "hovering" attendings who basically do the case, the need for absolute punctuality, ICU (of which unfortunately my program has an excess - ie more than required by the ACGME), loud/know-it-all/disrespectful surgeons, ditto for OR staff, urgent/emergent situations where everyone around me is all stressed out and on edge.
Things that I tend to like: figuring out the "best" way to perform each little task in a way that works well for me, being able to plan ahead as much as I like (caveat being the limited time in which to setup that for which you have planned), not having to rely on others to make sure things are done, getting to be creative and explore because there is no "right way" to do something, getting to test anesthesia theories first hand, short patient interactions.
Guess you have to weigh the pro's and cons and see which seems to win.
