We can see opposition managers change tactics and personnel during a game if they're losing. (justarsenal.com)
Celtic's Stefan Johansen started a touchline skirmish during the Euro 2016 qualifier between Norway and Bulgaria when he slid into opposition manager Lyuboslav Penev. (caughtoffside.com)
Everyone including opposition managers know how Wenger will line up, he has nothing in his locker. (justarsenal.com)