Keep in mind, Edwards is a hall of fame coach, and Mendenhall is the coach with the second-best winning percentage of all time at your school. It's entirely possible that the median winning percentage for BYU is more in line with Ott Romney (#3 on your list) of .5803 or Crowton (#4 on your list) of .5306) or Kimball (#5 on your list) of .5135. Those are all of your winning coaches. Your top ten coaching winning percentage list includes those 5 plus five with losing records. Kalani might keep that going, as there are systemic advantages that he has that Romney and Kimball didn't, but he also might fall short of Bronco and Edwards because there are some systemic disadvantages that he has that Edwards and Bronco (for the most part) didn't.