At the Sport Bild awards in Hamburg, Flick addressed the heated situation around Ter Stegen’s demotion and Garcia’s rise.
"With Joan Garcia, we have a very young, talented goalkeeper who is at a very high level," he said. "Everyone decided together that he should be the future of Barca. So, ultimately, it was clear what our approach would be.
"Whether everything has always been so good in terms of communication [with Ter Stegen]... I think there's a lot that can be improved. From my side too."
Flick emphasised he wants Ter Stegen to feel backed by the club as he recovers, but notably refused to guarantee him game time once fit, adding: "It's important to me that Marc and the club have come closer together and have genuinely sought communication. For me, it's now important that Marc comes back. He's a top goalkeeper! He'll get all the support he needs from us so he can truly play at his level again."