By Jared Keene NEFJ Correspondent NEEDHAM - Coaches and scouts from across the nation - and even Canada in the case of McGill - ascended upon St. Sebastian’s Tuesday evening, where the Arrows held their showcase as part of the Massachusetts Showcase Day. All in all, 23 players participated, first starting with some combine events before moving into positional drills for the remainder of the showcase. Sophomore DL/TE Ben Walker,...