A year after finishing seventh with a boost from a late surge during Jurgen Klopp’s last days as manager, Borussia Dortmund have gotten off to an impressive start under Thomas Tuchel. They’ve won each of their first two Bundesliga by a score of 4-0 and came back from 3-0 down to beat Odd Grenland 4-3 in their Europa League qualifying playoff. And they’ve done this while not being allowed to eat pizza, pasta, or any other delicious carbohydrates.