An international manager has to assess the talent pool, figure out what you have and don't have, and come up with a system to get the most out of your pool.
With the typical American fitness and work rate, Klopp might fit tactically, but they wouldn't have the stamina necessary to carry it across 90 or 120 minutes
Don't see why that is - everybody else seems to have no trouble getting drugs into the USbecause he can't get the speziale brau down them.