this could actually be a smart move. TT has done wonders with Rüdiger and Chirstensen and he might be able to do the same with Süle. He has lost his way a bit and massively regressed following his ACL but he still has the potential to become WC. Just remember when everyone was laughing off the rumours to sign John Stones. Now he is one of the best defenders in the league. Same can happen with Süle. When TT trusts him and is convinced he can turn him good it is worth a shot. I doubt Bayern will want to lose 3 cbs in the same window tho.