Isn't Bostic's forte speed? A reply stated that Bostic runs into his blockers. Maybe the blockers are not getting out fast enough to do their job (thinking about it too much) and the edge given by Bostic's speed is being negated by the blockers being in the way. Film should be studied by the coach to see why Bostic is runnng into his own blockers. Maybe, the statement that Bostic runs into his blockers is a key about the blocking and not the runner, or the system offsets the speed of Bostic.