Apparently his bellowing voice has good range, especially when he cups his hands around his mouth - it makes him an expert in calling back warming up subs - even if they're busy stretching hamstrings as far away as the corner flag... impressive stuff.
That's exactly what we need. Bit of direct, long ball assistant managing rather than our current attempts at tippy tappy "tell the physio to ask the fourth official to get one of the other subs to fetch a ball boy to retrieve Ferry from the corner flag/burger van/s&m club he's holed up in"