Oswald Burial & Exhumation-Mortician says NOT the Head He Buried-If It's Oswald's whose is the Body?

from The Men who Killed Kennedy e4
If Kennedy's brain was switched for the autopsy, is it really far fetched to say Oswald's head was switched in afterward, after someone else was buried?
https://rumble.com/v6lclss-horne-jfk-brain-photos-are-not-jfks-brain-the-2-brain-exams-following-the-a.html