Take a band with differences. Add Irving Azhole. Mix well. Hilarity is sure to ensue. Ask Don Felder. But what happened is easy to understand. Stevie didn't want to go on tour with Lindsay. Lindsay thought he was immune to her tantrums, because he's unquestionably the artistic glue in the post '75 version of Fleetwood Mac. Good ol' Irv took them aside and pointed out that at this point Fleetwood Mac on tour with Stevie was worth big guarantee bucks. A new album from Fleetwood Mac--no matter how good--might be worth a million, tops, and maybe less. So if you follow the money, and Irv does nothing but, then you fire Lindsay, bring Stevie back in and go on tour for the guaranteed money. No one cares about the legacy or about a new album. At least, no one making a 10% managerial cut, plus not-insubstantial cuts from his relationships and stockholdings in various ticketing agencies and performance venues. So, it might be a dick move. But Irv relishes that, Stevie is up for it. John and Mick just want to get on with things, and Christine didn't like it at all, but she was out of town and doesn't have that much power anyway.