Spurs lost 4-2 at Bolton and at one stage of the game they were 3-0 down in the North West.
Redknapp told Sky Sports: “It is obviously disappointing. They got after us, they did well. They worked hard, pressed us, didn’t let us play. It was difficult.
“Away from home we start the game trying to be solid in the first half, and we had some good opportunities.
“But we went a goal down, so I brought another striker on, went 4-4-2 and we are as open as a barn door. And that is the problem.
“We are too open. We don’t defend well enough. The game was too open and you can’t be doing that.
“That is the balancing act you try to sort out. We got punished.”