Guy, come on on the taking a shot at JP about replacing a band member "The right way". No way you take a shot at someone like that face to face. You'll ruin your brand by doing so.
Now, leaving out the last 30 years is something they do with the long time bands. Some people can only follow a band in their "teen" years and when a band has longevity, their music changing with the times and fans fall off.