Chad's line going towards the corner would have taken him to the outside berm, leaving room for Trey to take him on the inside quite legitimately. Chad, having been around the traps for 'a bit', tried to fend this off by cutting to the inside over the jump just before the corner. Pileup unavoidable as a result, but to me, no-one was to blame, given the above, so Chad was out of line (metaphorically). Mind you, I'm sure he thought he'd just give Trey a small fright and a minor bobble, not a stack.