Source: PWInsider Elite
As noted, WWE is trying a renewed effort within the company to put larger or bigger wrestlers in the spotlight, which is why Big Show is back in the main event.
The feeling among WWE officials is that they have a number of average-sized performers and now is the time to sign more head-turning attractions, bigger, & burlier wrestlers. WWE is looking to focus on bigger and stronger superstars as opposed to guys like CM Punk and Daniel Bryan.