By Justin Barrasso It wasn’t on national TV, but Dax Harwood and Cash Wheeler still got to share the ring with their hero: Bret Hart. SI.com’s Week in Wrestling is published every week and provides beneath-the-surface coverage of the business of pro wrestling. Bret Hart manages FTR at Big Time Wrestling showFTR returned to their roots on Friday, headlining an indie show at a town hall an hour west of Boston. Dax Harwood and Cash Wheeler—bona fide AEW stars who double as the reigning AAA and Ring of Honor tag champs—wrestled the main event against Brian Pillman Jr. and Brock Anderson, who were …