Any successful recording artist eventually submits to releasing a “Greatest Hits” album. This is the opposite: a beat-up XP coach putting his biggest and furthest-reaching mistakes in a neat package and releasing them to the public. This talk could also be named “Ten ways to guarantee your Agile transition is a total failure”, or “Apologies of an XP coach”; however I’m sure I’ll mention more than ten mistakes and I make no apology for them.