Tuchel intends to inform those omitted what they need to do to work their way back into the squad in time for next summer's World Cup.
First of all, it's my job now to make contact with everyone," Tuchel said.
"Players like Trent (Alexander-Arnold, Real Madrid), players that are on our long list, 55, 60 players, to reach out to them, be in touch with them, explain to them why they were not here. Explain to them what they have to do, where they can improve.
"Can they even do something or is it just a choice, so this is my job in the next weeks and months."
Asked whether he is going to make a lot of phone calls, Tuchel said: "Yeah, and I hate phone calls.
"Better on FaceTime. Then I see the expression, at least, and get a feeling for the person. Or I need to visit them, visit training, training grounds.
"We can do group visits. We can do Jude (Bellingham) and Trent. And visit the clubs. And some of them we will call. Let's see.
"Listen, we've just finished this camp and I think it's important that I reach out to everyone, even to the guys we didn't pick so regularly to tell them where they are and give them honest feedback."