I think Lewis has been better than he has been given credit for. Mackey tweeted a stat showing he has the third best OPS since June. Yes he brings some of the criticism on himself but I think he dug himself a huge hole earlier in the year and it is hard to get out of. See what he can do next year.
Julien is not in the plans, if he was he would be starting ahead of Clemens. He has had a longer sustained stretch of success in the major leagues than Clemens but yet he starts a couple of times a week. Clemens is a good bench player but not a starter. And flipping your bat when you are in a 4 for 40 stretch is just unnecessary.
As others have said, Falvey and Rocco need to go. At a minimum there needs to be a complete unbiased organizational review of what is working and not working. Because there is a lot not working and this next batch of prospects need to be put in a position to succeed, then if they don't maybe they weren't good enough. But I doubt this will happen without a change in ownership. But something is wrong in this organization and you would think they would want to figure it out.