So do what the feds do and not arrest and charge someone before you finish the investigation. Make sure you can comply with discovery. Maybe come up with a new computer system where the procecutors can share the discovery with the defense at the click of a button. The procecutors should be screeming that they need more resources or a computer system or whatever solution they want. Lawyers are some of the smartest people in the country and they can't figure out how to get evidence to a defendant in a timely manner?