For me the keys to victory are as follow:


Joe - "Volume punching" Joe needs to try and outland Kessler if possible 3 to 1.
"In and Out style" Joe needs to punch on the inside and step out but he must also throw something preferably a jab.
"Use the entire ring" Joe needs to use his skills which IMO are above Kess if Joe can box well as we've seen him do then he'll be fine.

Kessler - "Put some mustard on his punches" Kess needs to throw power punches but he needs to be selective not
conservative but selective on the ones that he throws with the most power.
"Have the last say" Kess needs to realize the Joes gonna flurry regardless of what goes on Kess needs to make sure that
as Joe finishes his flurry that he MUST land at least 1 hard punch if possible 2.
"Late rally" Kess needs to bring on the pressure late in the fight Kess needs to close out the fight wining the last rounds
he can not afford to let Joe win any of the late rounds.