Redknapp plans to go on the offensive to cope with his defensive problems.
He said in The Sun: "We have to go for it. Winning the game is all-important and it will set us up nicely.
"The group is wide open with one point each. Inter Milan are obviously the favourites but after that, it's wide open. At home, our crowd are pumped up. It will be an intimidating atmosphere, just like it was in the qualifier against Young Boys. We attacked and got after them from the start.
"That is what we have to do in these European games, especially in this group. In Milan you might set up differently but at home... no."