Aw sorry to hear that CF. If the lead hand asks for advice just say "I don't know" and let him hang himself. They'll find out how good he is. You'll have the last laugh my friend.
I have told him congrats and good fukn luck because now you are on your own and have taught me that if I treat people like **** for 7 years I too can be promoted. Everything now will be "What do you think Mr. lead tell me where to look next"