Aaron Bowers looked down Garfield Avenue that splits Manteca High in two and thought of the possibilities. The street — if abandoned and added to the footprint of the 42-acre Manteca High campus — could open up a lot of options. uThe 680-seat Winters Gym that is too small to accommodate the high school’s 1,500 students for an assembly could be extended. uThe campus could be reorientated with the office relocated closer to Moffat Boulevard for enhanced security and campus flow. uThere could be space for upwards of 20 more classrooms. Bowers — the Manteca Unified Director of Operations — is among those who will be working on a blueprint, if you will, in the coming months to masterplan Manteca High for its second 100 years that starts in 2020.