Pettitte is in & out of the clubhouse as his schedule allows; Gator is at ST - CC is busy with many different things; Clemens not sure but like Pettitte & CC has been involved with his kids; David has his broadcasting duties; he's probably the only one with insight into modern dynamics. Roger might be a good pitching coach but who knows. Not everyone no matter how good or knowledgeable can't always teach it.