Conversation so far:
Why did Vince Clarke leave Depeche Mode?
Clarke began to voice his discomfort at the direction Depeche Mode was taking and Clarke also said he was sick of touring.
Did Vince Clarke have other negative comments about Depeche Mode?
Clarke said about Depeche Mode, there was never enough time to do anything. Not with all the interviews and photo sessions.

Question: Who did they get to replace him?
Self-contained rewrite: Who did Depeche Mode get to replace Vince Clarke?