Geoff Gray has just finished a second day filling in for Stanley Bryant at left tackle for the Winnipeg Blue Bombers and, understandably, as he exited the field he was completely drenched in sweat. Asked to explain the differences between tackle and guard – where he has started all season – the 28-year-old University of Manitoba product breaks into a discourse about angles and timing, the importance of patience and footwork. And before a conversation with bluebombers.com was completed after practice Tuesday, the various subject matters included his culinary skills, City of Winnipeg bylaws and – of course – the…