The game was Boston's first game since Welsh was appointed manager on a permanent basis, having previously been in temporary charge following the departure of Tommy Taylor.
If so, it could be key evidence on December 13 when Aubry is in court to face the battery charge and on December 17 when he seeks to make permanent the temporary restraining order issued Monday banning Martinez from harassing, intimidating or contacting him.
The Owls had suffered several other setbacks in their hunt for a permanent replacement for Sturrock, while academy manager Sean McAuley was in caretaker charge.
Reserve-team coach Kevin MacDonald has been placed in caretaker charge of Villa, but sources close to Lerner say he would like a permanent appointment to be in place in time for the trip to St James' Park.