How do you know that Farke has a good understanding of Ampadu's game. What gives you that impression, or are you just making it up. Unless there's an article out there or an interview with Farke, then you don't know anything.
Another thing. Ampadu's biggest problem is his defending, when he's on the Back foot, with his back to goal. That's where he needs to improve, his awareness, composure and positioning, he twists hi myself up. He's decent enough spraying the ball and with 20 yards of space in front of him. His downfall is when things get on top, congested, where he has to think quickly. I hope Farke can fix that aspect of his game.