There are two things to be considered here: Like Choulo said, JT offers that experience and displays the mentality the team needs to have in crucial games. For this, he will always be an asset to the squad. The second, is that we'll also need to look beyond JT as he's not going to be around forever. We need to breed new champions, and the only way that can happen is if the current crop can win something signficant without the presence of the old guard. The Europa league final could serve as yet another test for that.