Spurs lost the first leg of their last-16 tie with RB Leipzig 1-0 after Timo Werner's second-half penalty settled matters in north London.
"I think people have to step up – not one (person).
"One game it will be one guy and in the other game it will be someone else. We don't have to stare blind at this result.
"I think we created a couple of chances against a very good opponent. I think we have to work hard and solve this as a team."
Goalkeeper Hugo Lloris was man of the match and the tie would be over had he not made a number of important saves.
He said: "Obviously it is quite clear we are not in the perfect position in this double confrontation, but there is still one leg to play.
"We are still alive. If we had conceded a second goal probably our chance would be over, so I think the message is clear, it is to stay positive."