1. The explanation for Lehmann not knowing seems fair. It explains the pictures - but jeez he made it look suspicious with his hand covering the walkie talkie and then trying to lower it when caught on camera. As for going forward, he in no way is the right man to change the way Aussies play cricket. His past record shows that he was definitely in favour of butting the line, and on several (known) occasions went over it himself.
2. Bancroft gets 9 months - wrong. Should be the same as Smith. Yes he's young and he was possibly pressured into it by Warner BUT he can make his own decisions. In hindsight, had he said no and had suffered in the team as a result, he could have whistleblown and received a lot of support by Aussie fans, authorities and teammates. Don't forget, he also lied to the umpires when asked to explain things on field, and then lied to the press and public after caught by denying it was sandpaper. Seems his morals are skewed.
3. Smith's punishment - probably just about right/bit harsh. It now looks as if the role he played was passive - "Don't tell me about it guys. I don't want to know". He was also passive in taking the heat - refusing to explain who was in the leadership group - protecting his teammates. What should he have done as captain? Find out what they were planning, and then telling them to stop straight away instead of metaphorically holding his hands to his ears.
4. As for Warner. Maybe he's a good Dad. Maybe he's good with his friends and family. What he is not good at is being sporting, being a leader, being a good teammate and being an ambassador for cricket. He has a history going back to his really early cricket career e.g. pushing a fellow player down the stairs, punching another. He should have been banned for life from cricket - all grades, given some help with his issues and in sorting out an alternate career.
5. My preference was still for the whole team to be banned for a year (because past and present more than just these three have shown poor sportsmanship, and failed to speak up about things that we do not know about yet - if ever). As I said earlier, by taking on the Aussies schedule, associate teams who have very few matches post WCQ would get more competitive games and thus learn more, and continue the fan momentum that the WCQ built, leading to growth of cricket in those countries. Something good for the whole game coming out of something bad for the whole game.