In the end, Twain did not get anyone from Germany or Italy to be his goalkeeping coach. He chose Clemence, who had been the goalkeeping coach for the England team for many years. He was an experienced goalkeeping coach, and he had represented England alongside Nottingham Forest's goalkeeper, Peter Shilton, previously. Shilton was the one who called to recommend him to Twain. As someone also from Nottingham Forest, they should take care of each other.
Twain chose Jon Webb, whom the English Football Association recommended, to be his fitness coach. He used to work for Manchester City but had been unemployed since.
