The smile that stuck to Matt McDonald’s mug Tuesday night, as his Lady Bruins took care of their third-straight section playoffs opponent in three straight games, was as apparent as the progress he and his coaching staff have made with the Bear River volleyball program. For the second consecutive season, the Lady Bruins will serve into the section title match, seeking to bring a championship banner back to Bear River for the first time in 14 years. As he surveyed the celebration inside McCrory Gymnasium, in addition to the semifinal win, McDonald’s pride had to also reside in the reconstruction …