The Blues skipper admits failure in qualifying for the Champions League but says that still wouldn't be enough for him without a trophy.
"I can only speak honestly for myself, maybe the club thinks differently," he said. "For myself it's about winning competitions. You enter every competition trying to win it, and we fell short in the other competitions but we've not fallen short in this one yet. We're in the final against a good team, but it's about winning trophies.
"Obviously, we're disappointed to not be in the Champions League, but if [it were a choice between] not qualifying for the Champions League and not winning anything, I'd definitely swap. That's just my opinion. The Newcastle game has gone from my head."
Cahill now turns his focus completely on the FA Cup final against Man Utd.
"In terms of the game we couldn't have done anything with a win, a loss or a draw, so the game has to be put to bed. We have to put that away and focus on the cup final this week. That's what it's about -- training, preparing well this week and getting ready to go into a huge game at the weekend."