#4 More squash matches
I know nobody really enjoys a meaningless squash match, but after what happened at Fast Lane, it's needed. But this time when the big man has a 5-minute match, it must be against known Superstars, not local ones.
The entire lower to mid card needs to be decimated at his hands in record time, hell, why not even have the big man have two squash matches a night. Anything that could get him ready in time for the Summerslam main event.
These squash matches also need to display more of Strowman's agility. For a 369-pounder, the bearded man moves as swift as a cat. These bouts could be used to help him develop a new move set and evolve into the most complete big man in history. It'd be a start I suppose.