Agree and disagree. It is great to have someone with that specific skillset on staff given how important FO are to the current game. However, vol assistants at other schools, especially on game day are huge. From running the substitution box, running the ipad on the live replay (something almost every major DI program is using right now), or helping coach goalies/riding/clearing/etc.
We were a mess last year with offsides and lack of organization from the box. That absolutely needs to be cleaned up and TD seems like the obvious person to run that part of the game.