Who wouldn't prefer to play under Kreis? Take the real thing rather than someone who is copying him. Plus Kreis is well known as an excellent man manager. People love to play for him.
I think Vanney was reasonable secure until the news of Kreis becoming available broke. They wouldn't bring in a foreign manager and start yet another rebuild, but if they can come to terms with Kreis it would be a huge upgrade without a need to totally blow apart the team (just a few upgrades would be needed). Unexpectedly this is becoming a real era deathwatch thread.