Image courtesy of @BostonRenegades (IG) The four-time defending WFA National Champions opened the 2023 season at Harry Della Russo Stadium in Revere on Saturday night and it was business as usual. Led by a returning Allison Cahill at QB after an Achilles injury kept her out of the championship game in 2022, the Renegades waltzed to a 63-6 win over the DC Divas. Cahill threw for 277 yards and four…