I don't think a midfield of JJ/Bayliss/Doyle/Thomas is too lightweight,
Jones battles back, watch the highlights video above and you'll see the amount of time he nicks the ball and starts a counter attack, he'll be defending against wingers or wing backs so pace will be key in tracking back, not being as strong or powerful as Shipley isn't an issue. Having pace on both wings acts as a form of defence as opposing full backs are less likely to commit to attacks due to worrying about counters on their wing.
The notion that you can only play one attacking winger is nonsense, Doyle and Bayliss can hold their own in midfield as proven on Saturday against one of the leagues better sides, Doyles leadership and communication is key though in talking 3 relatively inexperienced midfielders alongside him through the game, when to sit, when to go etc