Roger Clemens

This whole Roger Clemens perjury trial is suspicious to me. How can two high profile prosecutors make a rookie mistake as the one that they made. Clear evidence was there that he had been using illegal substances but because of the dumb mistake they made, the trial is over. Whether the prosecutors knew what they were doing to try to help out Roger Clemens or not is undetectable as of now, but it is only right to kind of believe so.