BROCKTON — As Brendan Hall of ESPN Boston used to say, the Brockton and St. John's of Shrewsbury scrimmage is the annual unofficial start of the MIAA high school football season. So, by that metric, welcome to 2024. St. John's drove from Central Mass. down to Brockton, and the two did battle, getting the rust out and hitting someone else for the first time this season. For much of what...