You really have a one-track mind on this stuff. Different situations require different tools and provide for different results. He might have been wrong or lying about Cedeno, but this is a different situation. It's a situation in which Piniella is asked to identify which baseball players should get playing time in order to advance the team's goal of winning. He's not showing a real good track record in these situations. Ok, so you don't think he is good at his job. Doesn't make him a liar. IIRC, the lying part comes from him saying he was going to get Cedeno starts since he was hitting so well, and then Cedeno proceeded to sit the next 7 games.