to piggy back ...
This is to the attendings who posted:
What if you received an interview invitation at your top spot, are complete in terms of the 3 LORs, app, etc. and are just waiting on the MSPE. However, you are currently auditioning at this program, and you did research with a prominent faculty member but in a different field (this faculty member is in a surgical field, and I'm going into anesthesiology). He offers to write a letter, this would be the 4th LOR ... the 5th you hope to attain from this audition "away" rotation ... would the 4th LOR be irrelevant or would that only serve to strengthen your application? I know the 5th LOR would help (IF I'm able to pull it off, that is). One of the faculty members today said the program commonly receives 4-5 LORs from applicants ...
Thanks for the help!